Transistors, the building blocks of modern electronics, are typically made of silicon. Because it’s a semiconductor, this material can control the flow of electricity in a circuit. But silicon has fundamental physical limits that restrict how compact and energy-efficient a transistor can be.

MIT researchers have now replaced silicon with a magnetic semiconductor, creating a magnetic transistor that could enable smaller, faster, and more energy-efficient circuits. The material’s magnetism strongly influences its electronic behavior, leading to more efficient control of the flow of electricity. 

The team used a novel magnetic material and an optimization process that reduces the material’s defects, which boosts the transistor’s performance.

The material’s unique magnetic properties also allow for transistors with built-in memory, which would simplify circuit design and unlock new applications for high-performance electronics.

“People have known about magnets for thousands of years, but there are very limited ways to incorporate magnetism into electronics. We have shown a new way to efficiently utilize magnetism that opens up a lot of possibilities for future applications and research,” says Chung-Tao Chou, an MIT graduate student in the departments of Electrical Engineering and Computer Science (EECS) and Physics, and co-lead author of a paper on this advance.

Chou is joined on the paper by co-lead author Eugene Park, a graduate student in the Department of Materials Science and Engineering (DMSE); Julian Klein, a DMSE research scientist; Josep Ingla-Aynes, a postdoc in the MIT Plasma Science and Fusion Center; Jagadeesh S. Moodera, a senior research scientist in the Department of Physics; and senior authors Frances Ross, TDK Professor in DMSE; and Luqiao Liu, an associate professor in EECS, and a member of the Research Laboratory of Electronics; as well as others at the University of Chemistry and Technology in Prague. The paper appears today in Physical Review Letters.

Overcoming the limits

In an electronic device, silicon semiconductor transistors act like tiny light switches that turn a circuit on and off, or amplify weak signals in a communication system. They do this using a small input voltage.

But a fundamental physical limit of silicon semiconductors prevents a transistor from operating below a certain voltage, which hinders its energy efficiency.

To make more efficient electronics, researchers have spent decades working toward magnetic transistors that utilize electron spin to control the flow of electricity. Electron spin is a fundamental property that enables electrons to behave like tiny magnets.

So far, scientists have mostly been limited to using certain magnetic materials. These lack the favorable electronic properties of semiconductors, constraining device performance.

“In this work, we combine magnetism and semiconductor physics to realize useful spintronic devices,” Liu says.

The researchers replace the silicon in the surface layer of a transistor with chromium sulfur bromide, a two-dimensional material that acts as a magnetic semiconductor.

Due to the material’s structure, researchers can switch between two magnetic states very cleanly. This makes it ideal for use in a transistor that smoothly switches between “on” and “off.”

“One of the biggest challenges we faced was finding the right material. We tried many other materials that didn’t work,” Chou says.

They discovered that changing these magnetic states modifies the material’s electronic properties, enabling low-energy operation. And unlike many other 2D materials, chromium sulfur bromide remains stable in air.

To make a transistor, the researchers pattern electrodes onto a silicon substrate, then carefully align and transfer the 2D material on top. They use tape to pick up a tiny piece of material, only a few tens of nanometers thick, and place it onto the substrate.

“A lot of researchers will use solvents or glue to do the transfer, but transistors require a very clean surface. We eliminate all those risks by simplifying this step,” Chou says.

Leveraging magnetism

This lack of contamination enables their device to outperform existing magnetic transistors. Most others can only create a weak magnetic effect, changing the flow of current by a few percent or less. Their new transistor can switch or amplify the electric current by a factor of 10.

They use an external magnetic field to change the magnetic state of the material, switching the transistor using significantly less energy than would usually be required.

The material also allows them to control the magnetic states with electric current. This is important because engineers cannot apply magnetic fields to individual transistors in an electronic device. They need to control each one electrically.

The material’s magnetic properties could also enable transistors with built-in memory, simplifying the design of logic or memory circuits.

A typical memory device has a magnetic cell to store information and a transistor to read it out. Their method can combine both into one magnetic transistor.

“Now, not only are transistors turning on and off, they are also remembering information. And because we can switch the transistor with greater magnitude, the signal is much stronger so we can read out the information faster, and in a much more reliable way,” Liu says.

Building on this demonstration, the researchers plan to further study the use of electrical current to control the device. They are also working to make their method scalable so they can fabricate arrays of transistors.

This research was supported, in part, by the Semiconductor Research Corporation, the U.S. Defense Advanced Research Projects Agency (DARPA), the U.S. National Science Foundation (NSF), the U.S. Department of Energy, the U.S. Army Research Office, and the Czech Ministry of Education, Youth, and Sports. The work was partially carried out at the MIT.nano facilities.

“We will launch during a dynamic political environment where many civil society groups that we would expect to attack us would have their resources focused on other concerns.”-Meta Internal Document on face recognition software for smart glasses, 2025

It’s unsurprising that a company would plan to release yet another privacy-invasive product. What is surprising is that they think we aren’t watching. You can help us keep them in check.

JOIN EFF

Meta isn't the only company actively eroding your privacy. We found that Google has broken its promise to some users to inform them about government surveillance. And Palantir is completely failing to live up to its purported human rights commitments.

Corporations bear responsibility for violating user trust and human rights, and EFF is holding them accountable with your support.

Watching the Watchers

We're suing DHS and ICE to reveal their efforts to unmask online critics, creating privacy-enhancing free software, and pushing for stronger privacy laws for everyone. This is all thanks to over 30,000 EFF members—a community you can join today.

Claw back your privacy with EFF's new member t-shirt!

We’ve seen collective action rein in companies and bring them back on track to protect users. With you by our side, we can do it again.

Join EFF today and be part of the community making this work possible.

____________________

EFF is a member-supported U.S. 501(c)(3) organization. We've received top ratings from the nonprofit watchdog Charity Navigator since 2013! Your donation is tax-deductible as allowed by law.

Not by name, but Laurie Anderson quotes me in one of the tracks of her new album:

My favorite quote is from a cryptologist who said “If you think technology will solve your problems, you don’t understand technology and you don’t understand your problems.”

Also in interviews:

“Of course, it’s ridiculous, outrageous, blah, blah, blah,” Anderson says about the ad. ‘But, I mean, my favorite quote on this is from a cryptologist who said, ‘If you think technology will solve your problems, you don’t understand technology ­ and you don’t understand your problems.’ And I think I’m completely on board with that.”...

The nation’s largest builder of wind and solar projects is moving into the heart of the data center boom with its plans to acquire Virginia’s Dominion Energy. It could affect energy prices and the environment.

Oklahoma's insurance commissioner says the law doesn't address the reason for property insurance hikes: increasing property damage.

The country would be the first to prevent courts from finding companies liable for climate change damage — a move lawyers say "risks undermining the rule of law."

The weakening of the Atlantic Meridional Overturning Circulation could alter weather and ecosystems throughout the world.

The new draft instead pledges that the commission “will improve the mechanism further,” working with the European Parliament and council on anti-circumvention measures.

Road elevation and drainage, water basin management, and training for farmers were among the activities that attracted the most funding, said a report.

Emission reductions are “likely to be considerably lower than assumed by the federal government,” says the Council of Experts on Climate Change.

The Duchy of Cornwall, created in the 14th century to provide an income for the Prince of Wales, owns 131,393 acres of land in 19 counties across England.

Researchers worry that oxygen levels in rivers could fall so low that dead zones appear, as they have in the Gulf of Mexico, Chesapeake Bay and Lake Erie.

In the aftermath of a devastating earthquake, unpiloted aerial vehicles (UAVs) could fly through a collapsed building to map the scene, giving rescuers information they need to quickly reach survivors. 

But this remains an extremely challenging problem for an autonomous robot, which would need to swiftly adjust its trajectory to avoid sudden obstacles while staying on course.

Researchers from MIT and the University of Pennsylvania developed a new trajectory-planning system that tackles both challenges at once. Their technique enables a UAV to react to obstacles in milliseconds while staying on a smooth flight path that minimizes travel time. 

Their system uses a new mathematical formulation that ensures the robot travels safely to its destination along a feasible path, and that is less computationally intensive than other techniques. In this way, it generates smoother trajectories faster than state-of-the-art methods.

The trajectory planner is also efficient enough for real-time flight using only the robot’s onboard computer and sensors. 

Named MIGHTY, the open-source system does not require proprietary software packages that can cost hundreds of thousands of dollars. It could be more readily deployed in a wider variety of real-world settings.

In addition to search-and-rescue, MIGHTY could be utilized in applications like last-mile delivery in urban spaces, where UAVs need to avoid buildings, wires, and people, or in industrial inspection of complex structures, such as wind turbines.

“MIGHTY achieves comparable or better performance using only open-source tools, which means any researcher, student, or company — anywhere in the world — can use it freely. By removing this cost barrier, MIGHTY helps democratize high-performance trajectory planning and opens the door for a much broader community to build on this work,” says Kota Kondo, an aeronautics and astronautics graduate student and lead author of a paper on this trajectory planner.

Kondo is joined on the paper by Yuwei Wu, a graduate student at the University of Pennsylvania; Vijay Kumar, a professor at UPenn; and senior author Jonathan P. How, a Ford professor of aeronautics and astronautics and a principal investigator in the Laboratory for Information and Decision Systems (LIDS) and the Aerospace Controls Laboratory (ACL) at MIT. The research appears in IEEE Robotics and Automation Letters.

Overcoming trade-offs           

When Kondo was a child, the Fukushima Daiichi nuclear accident occurred following the Great East Japan Earthquake. With school cancelled, Kondo was stuck at home and watched the news every day as workers explored and secured the reactor site. Some workers still had to enter hazardous areas to contain the damage and assess the situation, exposing them to high doses of radioactive material.

“I became passionate about creating autonomous robots that can go into these dynamic and dangerous situations, then come back and report to humans who stay out of harm’s way,” Kondo says.

This task requires a strong trajectory planner, which is software that decides the path a robot should follow to safely get from point A to point B. 

But many existing systems force tradeoffs that limit performance. 

While some commercial systems can rapidly generate smooth trajectories, they can cost hundreds of thousands of dollars. Open-source alternatives often underperform compared to commercial solvers or are difficult to use.      

With MIGHTY, Kondo and his colleagues developed an open-source system that produces high-quality, smooth trajectories while reacting to obstacles in real-time, and which runs fast enough for flight using only onboard components.

To do this, they overcame a key challenge that limits many open-source systems. 

These methods usually estimate how long it will take the robot to get from point A to point B as a first step. From that fixed estimation of travel time, the planner finds the best path to reach the destination.

While using a fixed travel time allows the planner to rapidly generate a trajectory, it has drawbacks. For one, if the UAV must go far out of its way to avoid obstacles, it could be forced to crank up the speed to meet the fixed travel-time budget. This makes it harder to avoid sudden hazards.

A MIGHTY method

Instead, MIGHTY uses a mathematical technique, called a Hermite spline, that optimizes the travel time and flight path together, in a single step, to form a smooth trajectory that can be precisely controlled.

“Optimizing the spatial and temporal components together gets us better results, but now the optimization becomes so much bigger that it is harder to solve in a feasible amount of time,” Kondo says.

The researchers used a clever technique to reduce this computational overhead. 

Instead of generating a trajectory from scratch each time, MIGHTY makes an initial guess of a trajectory. Then it refines the trajectory through an iterative optimization, using a map of the scene generated by the UAV’s lidar sensors.

“We can make a decent guess of what the trajectory should be, which is a lot faster than generating the entire thing from nothing,” Kondo says.

This enables MIGHTY to react in real-time to unknown obstacles while keeping the trajectory smooth and minimizing travel time. The system utilizes the UAV’s onboard components, which is important for applications where a robot might travel far from a base station.

In simulated experiments, MIGHTY needed only about 90 percent of the computation time required by state-of-the-art methods, while safely reaching its destination about 15 percent faster than these approaches. 

When they tested the system on real robots, it reached a speed of 6.7 meters per second while avoiding every obstacle that appeared in its path.

“With MIGHTY, everything is integrated in one piece. It doesn’t need to talk to any other piece of software to get a solution. This helps us be even faster than some of the commercial solvers,” Kondo says.

In the future, the researchers want to enhance MIGHTY so it can be used to control multiple robots at once and conduct more flight experiments in challenging environments. They hope to continue improving the open-source system based on user feedback.

“MIGHTY makes an important contribution to agile robot navigation by revisiting the trajectory representation itself. Hermite splines have already been successfully used in visual simultaneous localization and mapping, and it is nice to see their advantages now being exploited for trajectory planning in mobile robots. By enabling joint optimization of path geometry, timing, velocity, and acceleration while retaining local control of the trajectory, MIGHTY gives robots more freedom to compute fast, dynamically feasible motions in cluttered environments,” says Davide Scaramuzza, professor and director of the Robotics and Perception Group at the University of Zurich, who was not involved with this research.

This research was funded, in part, by the United States Army Research Laboratory and the Defense Science and Technology Agency in Singapore.

Nature Climate Change, Published online: 19 May 2026; doi:10.1038/s41558-026-02640-x

Climate change impacts are no longer distant but have entered people’s everyday experiences. Here we look back on a 2011 paper that showed how direct personal experience shapes people’s climate change perceptions, their beliefs about the efficacy of their action and willingness to act, and how the field of research has evolved.

Nature Climate Change, Published online: 19 May 2026; doi:10.1038/s41558-026-02655-4

The authors reconstruct historical seabird dispersal routes, showing that birds responded to temperature shifts by changes in range size rather than body mass. These trends are projected to persist, with higher rates of warming causing greater range contractions and longer dispersal distances.

The brain’s capacity to use and understand language expands rapidly in the first years of life, as babies start to make sense of the words they hear and eventually begin to piece together sentences of their own. The language-processing parts of the brain that make this possible continue to evolve in older children, as they expand their vocabularies and learn to use language more flexibly. 

MIT brain researchers have captured snapshots of the developing language-processing network in brain scans of hundreds of children and adolescents. Their data, reported May 16 in the journal Nature Communications, show that the network continues to mature, becoming better integrated and increasingly responsive until around age 16. But they also found that a key feature of the adult language network is established early on: its localization in the left side of the brain. 

Language lateralization 

It is well known that using language is mostly the job of the left hemisphere. As adults, we call on the language-processing regions there when we read, write, speak, or listen to others talk. But there was some question as to whether this left lateralization is established early in life, or might instead emerge as the language network matures, with both sides of the brain contributing to language in childhood. 

To find out, researchers needed to see young brains in action — and several MIT labs had collected exactly the right kind of data. Groups led by Evelina Fedorenko, an associate professor of brain and cognitive sciences; John Gabrieli, the Grover Hermann Professor of Health Sciences and Technology; and Rebecca Saxe, the John W. Jarve (1978) Professor of Brain and Cognitive Sciences, teamed up to share brain scans from children, adolescents, and adults and compare how their brains responded to language. Fedorenko, Gabrieli, and Saxe are also investigators at the McGovern Institute for Brain Research. 

In studies aimed at better understanding a variety of cognitive functions and developmental disorders, the three teams had all collected functional MRI data while subjects participated in “language localizer” tasks — an approach the Fedorenko lab developed to map the language-processing network in a person’s brain. By monitoring brain activity with functional MRI as people engage in both language tasks and non-linguistic tasks, researchers can identify parts of the brain that are exclusively dedicated to language processing, whose precise anatomic location varies across individuals. 

To activate the language network, the researchers had children listen to stories inside the MRI scanner. Depending on their age, some heard excerpts of “Alice in Wonderland,” some listened to podcasts and TED talks, and others heard shorter, simpler stories. To watch their brains during a non-linguistic task, the researchers had the children listen to nonsense words. 

Across the data from the three labs, which included children between the ages of 4 and 16, as well as adults for comparison, the team saw clear developmental changes in the brain’s response to language. “The integration of the system — how well different subregions of the system correlated with each other and worked together during language processing — was stronger in older children as compared to younger children,” says Ola Ozernov-Palchik, a research scientist in Gabrieli’s lab and a research assistant professor at Boston University. The system was also more strongly activated by language in older children, which may reflect their growing comprehension of what they hear. 

But strikingly, almost all language processing happened on the left side of the brain, even in the youngest subjects. “From age 4 on, it seems just as lateralized as in an adult,” Gabrieli says. 

Language and developmental disorders 

The researchers say this finding has implications for understanding developmental conditions that impact language, including autism and dyslexia. The right side of the brain frequently gets more involved in language processing in people with these conditions than it does in typically developing children. “Almost every single developmental disorder that’s associated with language has a theory that’s related to language lateralization,” Ozernov-Palchik says. 

The reason for more bilateral language processing in some disorders is debated. One idea has been that some people might use both sides of their brain for language processing because their brains are less mature. If the right side of the brain processes language early in life, scientists had reasoned, it might simply continue to do so for longer in people with autism or dyslexia than it does in neurotypical individuals. But if most people use the left side of their brains for language even when they are young, the difference can’t be attributed to a developmental delay. Other developmental differences might cause bilateral language processing instead. 

The researchers don’t have the full picture yet; they still need to know what parts of the brain process language in children younger than 4. Likewise, they would like to know what the brain areas that become the language network are doing in the first months of life, when infants aren’t using language yet. They are eager to find out, both to understand fundamentals of brain development and to shed light on developmental disorders. “I think understanding that normal trajectory is really critical for interpreting what a deviation from that trajectory is,” says Amanda O’Brien, a former graduate student in Gabrieli’s lab who is now a postdoc at Harvard University. 

One reason people thought lateralization might develop gradually is because damage to the left hemisphere of the brain impacts language abilities differently, depending on when it occurs. “If you have damage to the left hemisphere as an adult, you’re very likely to end up with some form of aphasia, at least temporarily,” Fedorenko explains. “But a lot of the time, with early damage to the left hemisphere, you grow up and you’re totally fine. The language can just develop in the right hemisphere.” 

Some scientists suspected that the right side of the brain was able to take over language processing in children who suffered early-life brain damage because it was already participating in this function at the time. But the team’s findings suggest the developing brain may be nimbler than that. “Our data tell you that this early plasticity apparently happens in spite of the fact that by age 4, we see these very strongly lateralized responses already,” Fedorenko says.

In 2001, at the dawn of the digital age, MIT made a bold decision: to open its curriculum to the world. Through MIT OpenCourseWare — now part of MIT Open Learning — the Institute began sharing materials from nearly all of its courses online for free.  

A quarter of a century later, that decision has impacted the lives of more than 500 million people across the world who have used OpenCourseWare’s resources to expand their knowledge and develop new skills. 

“When MIT opens its doors, the world walks in,” said Dimitris Bertsimas, vice provost for open learning, at OpenCourseWare’s recent 25th Anniversary Symposium. “Twenty-five years ago, MIT made a bet on openness, generosity, and on the belief that knowledge is a public good. That bet has paid off 500 million times over.”

The impact of that bet took center stage as nearly 200 people gathered on campus for the symposium on April 8. The daylong celebration brought together faculty and staff, OpenCourseWare learners and educators, new and early funders of the program, MIT President Sally Kornbluth, Bertsimas, and others to reflect on OpenCourseWare’s global impact and the future of free and open education. 

The occasion also marked the premiere of “The Courage to Be Open: MIT OpenCourseWare and the Democratization of Knowledge.” Produced by MIT Open Learning’s Emmy Award-winning video team, the short documentary explores the origin, influence, and global reach of OpenCourseWare.

Initially announced as a 10-year initiative, MIT OpenCourseWare now offers more than 2,500 courses that span the undergraduate and graduate curriculum. Learners can freely access lecture notes, syllabi, problem sets, exams, and video lectures through the MIT Learn platform, the OpenCourseWare website, and its YouTube channel, which has grown into the platform’s most popular higher education channel with more than 6 million subscribers. To extend that reach even further, the OpenCourseWare Mirror Site Program provides free copies of course content on hard drives to educational organizations with limited or costly internet access.

From an idea to a global movement

In launching OpenCourseWare, MIT sparked a global movement, inspiring other universities to create their own open course initiatives and solidifying grassroots open education efforts into worldwide communities like OE Global. “Today, [OpenCourseWare] is cited in national education strategies, by nonprofit initiatives, and by international development programs — proof that openness scales when you lead with vision and courage,” Kornbluth said.

That impact lives on in the learners who turn to the Institute’s free course materials every day — from a community college student in Boston to a teenager in Australia to medical students in Turkey. OpenCourseWare has expanded the reach of MIT’s life-changing knowledge to nearly every corner of the world and opened doors to learners of all ages and backgrounds.

For many, that access is transformative. High school senior Hinata Yamahara and Andrea Henshall, a veteran of the United States Air Force, shared how OpenCourseWare helped fuel their curiosity, support their studies, and advance their goals.

“OpenCourseWare [reduces] the barrier to entry to more specialized topics,” said Yamahara, who discovered the resources while exploring an interest in urban planning, and now credits an MIT workshop with helping him pass the Federal Aviation Administration’s Private Pilot Knowledge Test.

From access to agency

What emerges across stories is that MIT’s decision to give away its course materials exemplified its mission to advance knowledge in service of the nation and the world. Openness, noted speakers, is part of the Institute’s DNA. “It’s written into our values,” said Chris Bourg, director of libraries at MIT, where she is also the founding director of the Center for Research on Equitable and Open Scholarship (CREOS).

Those values have also drawn thousands of supporters — from alumni and individual learners to businesses and the world’s leading philanthropic foundations — to help underwrite the initiative, and Open Learning more generally.

By making course materials not only free, but open, the Institute enables anyone to download, copy, modify, reuse, remix, and redistribute its resources for educational, non-commercial uses. “Access is powerful and absolutely necessary,” said Curt Newton, director of OpenCourseWare. “But openness goes further. It invites participation.”

For educators like Elizabeth Siler, a professor at Worcester State University in the department of business administration and economics, and Victor Odumuyiwa, an associate professor in computer science at the University of Lagos, OpenCourseWare offers a window into how MIT designs learning experiences and a foundation to bring those approaches into their own classrooms.

“I applied the same approach back home and, sincerely, I’ve gotten a lot of positive feedback from people getting jobs in global companies after taking the course that I designed,” Odumuyiwa said. 

For faculty on MIT’s campus, OpenCourseWare has also been transformative, fostering interdisciplinary collaborations and innovative uses of digital educational tools. Referencing the United Nations Sustainable Development Goals, Christopher Capozzola, the Elting E. Morison Professor of History at MIT, pointed to quality education (goal 4), reduced inequalities (goal 10), and peace, justice, and strong institutions (goal 16) as a guiding equation for open education. “I believe that MIT, through OpenCourseWare and all of our open education initiatives, has committed to solving that problem,” he said. “I just wanted to roll up my sleeves and be part of that.”

A new era for open education

If the rise of the internet in the early 2000s catalyzed MIT’s decision to “open its doors to the world without requiring a key,” said Kornbluth, artificial intelligence now presents a new moment to lead.

Building on that legacy, MIT Open Learning is leading the way with the launch of MIT Learn, an AI-enabled hub for the Institute’s non-degree learning opportunities. The platform brings together innovations like AskTIM — an AI assistant that helps learners discover relevant offerings and, in select offerings, enhances understanding with guided support — and new self-paced, modular online learning experiences that prepare learners to take on complex global challenges, including AI and climate. Together, these advances move MIT closer to a future of truly personalized education at global scale, grounded in faculty expertise and research.

“Sometime in the next five years, I’m looking for a moment that rhymes with what happened in 2001,” Newton said.

With the launch of MIT Learn and Open Learning’s goal of reaching 1 billion learners in the next decade, that next chapter is already taking shape.

“The future of open learning is bright, and belongs to all of us,” Bertsimas said.

We recently updated our privacy policy for the first time since 2022. Most of the changes are clarifications, reorganizations, and improvements in transparency, particularly around how third-party tools that run parts of our site operate. But one change is substantive enough that we want to address it directly.

The Change You Should Know About: Opt-In Email Tracking

We want to know how we’re doing with our advocacy: which campaigns get your attention and which do not, which topics you are very interested in, which less so, and which not at all. It helps us to do our work better and to prioritize or rethink our strategies as we push to build support for freedom, justice and innovation around the world.

So, to give us a rough picture of how we’re doing, we are introducing the option for you to provide explicit, opt-in consent for us to see how you interact with the emails we send you. That includes whether you open emails, and whether you click on the links inside them.

We know what you’re thinking: Doesn’t EFF strongly oppose nonconsensual tracking? You bet we do. Sneaky email tracking is ubiquitous on the web and EFF’s opposition to it remains unchanged. We have never used email tracking pixels and we’re not changing that. We’re not building profiles and we’re not sharing the data and we’re definitely not selling it.

But we do want to give you the option of allowing us to learn about how our communications are landing with you. Here’s how consent will work. We will ask, and if you say yes, we’ll be able to see whether you opened an email or not, and whether you clicked on any links. That's it.

If you say no, or ignore the ask entirely, nothing will change and we’ll do no tracking.

If you say yes, you can change your mind and opt out at any time by clicking an opt-out link in any future email or by contacting membership@eff.org.

We have heard many EFF members say that EFF is one of the only organizations that they trust with consent to track their emails. That trust is important, and we do not take it lightly. But it led us to think that if we ask, enough of you would agree that we could have a better picture of how our campaigns and other emails to you are landing and that, in turn, could help us decide what to double down on and what to change.

By giving you a real ability to consent, EFF is taking a very different path than most of the web. Asking isn’t the norm; it’s more or less never an option to say no and dark patterns often make it hard even if it looks like you can. Unfortunately, estimates have shown that 2/3s of emails received by users contain tracking, regardless of whether the senders received explicit consent at the time when a recipient signs up to receive their mailings. Automatic, nonconsensual tracking doesn’t have to be the default, and it shouldn’t be.

We hope our approach works and it inspires others. It shouldn’t be an abnormality that users are not tracked by default, and that only users who feel comfortable doing so choose to consent to tracking. We hope that our example will show mailing platforms, organizations, and users that a privacy-protective approach is better and worth doing and can still give an email sender a solid understanding what campaigns and other messages resonate with recipients. We weighed this decision carefully. We know that email tracking is something we've criticized when used covertly or without meaningful consent and that many people don’t like at all. For EFF, an opt-in requirement isn't a formality. It's the key distinction between a sneaky strategy and an aboveboard relationship with you. And to us, it’s just a common sense approach based on respect.

It’s also consistent with our advocacy and approach to technology. We have said for many years that strong consumer privacy laws must require real opt-in consent before data is collected. And we have walked our talk in other ways as well, including in pushing for Do Not Track policies and in Privacy Badger, which protects you from ads and trackers that violate the principle of user consent.

Again, this behavior has been our suggestion for privacy policies, and privacy laws. In 2022 we released a guide for nonprofits that recommended the following:

Not tracking email open rates can, unfortunately, sometimes cause list “hygiene” problems, because it becomes difficult to know whether email subscribers on your list are still interested. You can send occasional emails to ensure subscribers want to receive emails, either using open or click tracking, and informing people that the purpose of that specific email is to determine active subscribers. The essential point is to let users know when you are using tracking, and to do it in a limited way when possible....

The Internet Archive found that while they preferred to use no open tracking in their emails to subscribers, too many unreachable email addresses had been added to their list over the years, and some email addresses had even become spam traps. To continue working with their email service provider, they needed to activate some tracking. They needed email open data to know whether an email address was still active or not; but they didn’t need or want gender, age, or demographic data. They settled on informing users that their email open rates are being tracked, and offering the alternate option to sign up for plain-text versions of their emails, which won't transmit any data at all.

In 2019, we recommended that all strong consumer privacy laws must include opt-in consent for data collection. We wrote:

Right to opt-in consent

New legislation should require the operators of online services to obtain opt-in consent to collect, use, or share personal data, particularly where that collection, use, or transfer is not necessary to provide the service.

Any request for opt-in consent should be easy to understand and clearly advise the user what data the operator seeks to gather, how they will use it, how long they will keep it, and with whom they will share it. This opt-in consent should also be ongoing—that is, the request should be renewed any time the operator wishes to use or share data in a new way, or gather a new kind of data. And the user should be able to withdraw consent, including for particular purposes, at any time.

Opt-in consent is better than opt-out consent. The default should be against collecting, using, and sharing personal information. Many consumers cannot or will not alter the defaults in the technologies they use, even if they prefer that companies do not collect their information.

We are sticking to those recommendations, which unfortunately are not yet the law, and following our principles.

We hope that you will feel comfortable opting in, but we also respect that you need to make that decision for yourself, and that you may need to change it as you go. We’ll do our part to make that as clear and easy as possible. And if you do agree, we’ll be grateful for getting a chance to learn a little more about how we’re doing, hopefully in ways that can make us even more effective at ensuring that technology supports freedom, justice and innovation for all the people of the world.

Other Changes: Clarity and Stronger Protections

The rest of the update is largely about being more precise and provide more transparency into our practices.

Cookies on eff.org: The new policy tightens our cookie practices. Previously, we carved out exceptions for "remember me" and logged-in users; now we don't use persistent ID cookies on the eff.org domain at all. We also clarified that other EFF-operated sites‚ like acteff.org and shopeff.org‚ have their own cookie policies and that our policies aren’t the ones that apply there. We’re not happy that you have to navigate multiple policies like this, but it’s one of the ways that the cookie ecosystem has gotten unfortunately complex. We want to be sure you know that and know where to look for all the information.

Third-party tool transparency: Similarly, while the vast majority of EFF’s public-facing websites, online tools and tech projects are created internally, self-hosted, and self-maintained, some of them are not. In this new policy, we are working to be more detailed and explicit in the new policy about those third-party services, and how they operate under their own privacy policies, not solely ours.

To help you understand exactly what choices you have when using these tools, we're publishing dedicated Privacy Guides for each of them. The first is live now for our shop, which runs on Shopify: EFF Shopify Privacy Guide. Guides for our other third-party tools are coming soon. As always, we recommend installing Privacy Badger to limit exposure from third-party tracking.

Overall, EFF believes that when a project like the Atlas of Surveillance doesn't exist, and we think it should, we build it and maintain it. But what matters most to us is protecting your digital rights. So the time required to maintain and upgrade the tools we have built has to be weighed against our need to build new projects to fight new fights. And sometimes, a tool that was needed when we built it, like EFF’s Action Center, can be replaced by something that can take some of the weight off our internal staff.

To help make space for new projects, we carefully investigate services we rely on—like our campaign tools, payment processors, and online shop—and look for third party options that are the best in the industry and offer a level of privacy our users deserve. In this new privacy policy we try to give you as much information about those third-party services as we can.

GDPR data management: We added a clear, dedicated process for users in the EU and elsewhere to request deletion of their personal data. Email info@eff.org with the subject line "GDPR Data Deletion Request" and we'll respond within the legally required timeframe.

Data retention: We reorganized and clarified how long we keep different types of records (communications, financial records, donation paperwork) into a cleaner list. The substance is unchanged, but the structure should make it easier to find what's relevant to you.

Action Center: You may notice that the previous policy included a dedicated section on our Action Center - how we handled your campaign participation data, what we retained, and so on. That section is gone because we're transitioning our campaign tools to a third-party provider. This is the kind of situation the new third-party transparency language addresses: that provider operates under its own privacy policy, which we'll link to in its dedicated Privacy Guide. Our commitment to your privacy in those contexts doesn't change‚ it just lives in a different place now.

What Hasn't Changed

The fundamentals remain what they've always been: we don't sell your information, we don't share it with third parties without your real (not manufactured or dark-patterned) consent, outside of legal requirements we cannot change. We actively push back on legal demands we believe are improper. EFF's mission is to protect your digital rights, and our own practices will continue to reflect that. The changes we’ve described above will help us in that mission.

support EFF

You can read the full updated policy at eff.org/policy. If you have questions, we're always reachable at info@eff.org.

Poor accountability, feeble control mechanisms, and insufficient legal frameworks have led to systematic human rights violations in the Americas, with no consistent remedy or reparation to victims. What's needed is to materialize essential guarantees and measures to combat repeated surveillance abuses in the region. To help build a path for solutions, EFF launches the guide Tackling Arbitrary Digital Surveillance in the Americas, adding to our extensive work leveraging human rights norms to confront state privacy violations.

The document compiles privacy, data protection, and access to information guarantees established within the Inter-American Human Rights System to provide concrete, actionable guidance to governments in the Americas to curb the vicious cycle of state digital surveillance abuses. It outlines the safeguards and institutional measures necessary to protect individuals and details rules, parameters, and standards to overcome current pernicious practices and trends. 

As concerns over national and public security intensify, countries in the region seem to increasingly normalize the pervasiveness of digital surveillance technologies and their arbitrary use by security forces as a distorted form of protection. However, no actual protection can arise from arbitrary surveillance. 

When public security, intelligence, and law enforcement agencies neglect or harm settled rights in the name of national security or public order, they too become a threat. Tolerating rights violations creates the dire situation that the Freedom of Expression Special Rapporteur of the Inter-American Commission on Human Rights thoroughly analyzed in his report about the serious impacts of digital surveillance on freedom of expression in the Americas.

The great majority of states in Latin America have ratified the American Convention on Human Rights. As such, the parameters and rules our new guide describes stem directly from their obligations before international human rights law. State agents and institutions must take the necessary measures to make them a reality.

As EFF’s guide points out, states must implement clear and precise legal frameworks that:

• define surveillance powers and limitations;
• ensure all surveillance measures pursue legitimate aims without discriminatory ends;
• subject interference with privacy to rigorous necessity and proportionality analysis;
• require prior judicial authorization for digital surveillance measures;
• maintain detailed records of surveillance operations;
• establish independent civilian oversight institutions with technical expertise and enforcement powers;
• guarantee individuals' right to informational self-determination and proper notification; and
• provide effective remedies and reparation for victims of surveillance abuses.

States must also put in place the institutional processes and structures to give effect to these legal guarantees. As we stress in the document, States that embrace the guide’s recommendations will not only comply with their international obligations, but will also build more resilient, rights-respecting security architectures capable of addressing genuine threats without sacrificing the freedoms they exist to protect. 

Civil society leaders, activists, legal experts, public defenders, oversight institutions, and state officials committed to human rights must gather and ramp up the fight against the normalization of digital surveillance abuses in the Americas. We hope that EFF’s new guide can serve as a crucial tool in strengthening this fight, one that we have joined since our early days.

It’s nasty, but it requires physical access to the computer:

The exploit, named YellowKey, was published earlier this week by a researcher who goes by the alias Nightmare-Eclipse. It reliably bypasses default Windows 11 deployments of BitLocker, the full-volume encryption protection Microsoft provides to make disk contents off-limits to anyone without the decryption key, which is stored in a secured piece of hardware known as a trusted platform module (TPM). BitLocker is a mandatory protection for many organizations, including those that contract with governments...