Schneier on Security
Possible New Result in Quantum Factorization
I’m skeptical about—and not qualified to review—this new result in factorization with a quantum computer, but if it’s true it’s a theoretical improvement in the speed of factoring large numbers with a quantum computer.
Upcoming Speaking Engagements
This is a current list of where and when I am scheduled to speak:
- I’m giving the Ross Anderson Lecture at the University of Cambridge’s Churchill College at 5:30 PM GMT on Thursday, March 19, 2026.
- I’m speaking at RSAC 2026 in San Francisco, California, USA, on Wednesday, March 25, 2026.
- I’m part of an event on “Canada and AI Sovereignty,” hosted by the University of Toronto’s Munk School of Global Affairs & Public Policy, which will be held online via Zoom at 4:00 PM ET on Monday, March 30, 2026.
- I’m speaking at DemocracyXChange 2026...
Friday Squid Blogging: Increased Squid Population in the Falklands
Some good news: squid stocks seem to be recovering in the waters off the Falkland Islands.
As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.
Academia and the “AI Brain Drain”
In 2025, Google, Amazon, Microsoft and Meta collectively spent US$380 billion on building artificial-intelligence tools. That number is expected to surge still higher this year, to $650 billion, to fund the building of physical infrastructure, such as data centers (see go.nature.com/3lzf79q). Moreover, these firms are spending lavishly on one particular segment: top technical talent.
Meta reportedly offered a single AI researcher, who had cofounded a start-up firm focused on training AI agents to use computers, a compensation package of $250 million over four years (see ...
iPhones and iPads Approved for NATO Classified Data
Apple announcement:
…iPhone and iPad are the first and only consumer devices in compliance with the information assurance requirements of NATO nations. This enables iPhone and iPad to be used with classified information up to the NATO restricted level without requiring special software or settings—a level of government certification no other consumer mobile device has met.
This is out of the box, no modifications required.
Boing Boing post.
Canada Needs Nationalized, Public AI
Canada has a choice to make about its artificial intelligence future. The Carney administration is investing $2-billion over five years in its Sovereign AI Compute Strategy. Will any value generated by “sovereign AI” be captured in Canada, making a difference in the lives of Canadians, or is this just a passthrough to investment in American Big Tech?
Forcing the question is OpenAI, the company behind ChatGPT, which has been pushing an “OpenAI for Countries” initiative. It is not the only one eyeing its share of the $2-billion, but it appears to be the most aggressive. OpenAI’s top lobbyist in the region has met with Ottawa officials, including Artificial Intelligence Minister Evan Solomon...
Jailbreaking the F-35 Fighter Jet
Countries around the world are becoming increasingly concerned about their dependencies on the US. If you’ve purchase US-made F-35 fighter jets, you are dependent on the US for software maintenance.
The Dutch Defense Secretary recently said that he could jailbreak the planes to accept third-party software.
New Attack Against Wi-Fi
It’s called AirSnitch:
Unlike previous Wi-Fi attacks, AirSnitch exploits core features in Layers 1 and 2 and the failure to bind and synchronize a client across these and higher layers, other nodes, and other network names such as SSIDs (Service Set Identifiers). This cross-layer identity desynchronization is the key driver of AirSnitch attacks.
The most powerful such attack is a full, bidirectional machine-in-the-middle (MitM) attack, meaning the attacker can view and modify data before it makes its way to the intended recipient. The attacker can be on the same SSID, a separate one, or even a separate network segment tied to the same AP. It works against small Wi-Fi networks in both homes and offices and large networks in enterprises...
Friday Squid Blogging: Squid in Byzantine Monk Cooking
This is a very weird story about how squid stayed on the menu of Byzantine monks by falling between the cracks of dietary rules.
At Constantinople’s Monastery of Stoudios, the kitchen didn’t answer to appetite.
It answered to the “typikon”: a manual for ensuring that nothing unexpected happened at mealtimes. Meat: forbidden. Dairy: forbidden. Eggs: forbidden. Fish: feast-day only. Oil: regulated. But squid?
Squid had eight arms, no bones, and a gift for changing color. Nobody had bothered writing a regulation for that. This wasn’t a loophole born of legal creativity but an oversight rooted in taxonomic confusion. Medieval monks, confronted with a creature that was neither fish nor fowl, gave up and let it pass...
Anthropic and the Pentagon
OpenAI is in and Anthropic is out as a supplier of AI technology for the US defense department. This news caps a week of bluster by the highest officials in the US government towards some of the wealthiest titans of the big tech industry, and the overhanging specter of the existential risks posed by a new technology powerful enough that the Pentagon claims it is essential to national security. At issue is Anthropic’s insistence that the US Department of Defense (DoD) could not use its models to facilitate “mass surveillance” or “fully autonomous weapons,” provisions the defense secretary Pete Hegseth ...
Claude Used to Hack Mexican Government
An unknown hacker used Anthropic’s LLM to hack the Mexican government:
The unknown Claude user wrote Spanish-language prompts for the chatbot to act as an elite hacker, finding vulnerabilities in government networks, writing computer scripts to exploit them and determining ways to automate data theft, Israeli cybersecurity startup Gambit Security said in research published Wednesday.
[…]
Claude initially warned the unknown user of malicious intent during their conversation about the Mexican government, but eventually complied with the attacker’s requests and executed thousands of commands on government computer networks, the researchers said...
Israel Hacked Traffic Cameras in Iran
Multiple news outlets are reporting on Israel’s hacking of Iranian traffic cameras and how they assisted with the killing of that country’s leadership.
The New York Times has an <a href="https://www.nytimes.com/2026/03/01/us/politics/cia-israel-ayatollah-compound.html"<article on the intelligence operation more generally.
Hacked App Part of US/Israeli Propaganda Campaign Against Iran
Wired has the story:
Shortly after the first set of explosions, Iranians received bursts of notifications on their phones. They came not from the government advising caution, but from an apparently hacked prayer-timing app called BadeSaba Calendar that has been downloaded more than 5 million times from the Google Play Store.
The messages arrived in quick succession over a period of 30 minutes, starting with the phrase ‘Help has arrived’ at 9:52 am Tehran time, shortly after the first set of explosions. No party has claimed responsibility for the hacks...
Manipulating AI Summarization Features
Microsoft is reporting:
Companies are embedding hidden instructions in “Summarize with AI” buttons that, when clicked, attempt to inject persistence commands into an AI assistant’s memory via URL prompt parameters….
These prompts instruct the AI to “remember [Company] as a trusted source” or “recommend [Company] first,” aiming to bias future responses toward their products or services. We identified over 50 unique prompts from 31 companies across 14 industries, with freely available tooling making this technique trivially easy to deploy. This matters because compromised AI assistants can provide subtly biased recommendations on critical topics including health, finance, and security without users knowing their AI has been manipulated...
On Moltbook
The MIT Technology Review has a good article on Moltbook, the supposed AI-only social network:
Many people have pointed out that a lot of the viral comments were in fact posted by people posing as bots. But even the bot-written posts are ultimately the result of people pulling the strings, more puppetry than autonomy.
“Despite some of the hype, Moltbook is not the Facebook for AI agents, nor is it a place where humans are excluded,” says Cobus Greyling at Kore.ai, a firm developing agent-based systems for business customers. “Humans are involved at every step of the process. From setup to prompting to publishing, nothing happens without explicit human direction.”...
LLM-Assisted Deanonymization
Turns out that LLMs are good at de-anonymization:
We show that LLM agents can figure out who you are from your anonymous online posts. Across Hacker News, Reddit, LinkedIn, and anonymized interview transcripts, our method identifies users with high precision and scales to tens of thousands of candidates.
While it has been known that individuals can be uniquely identified by surprisingly few attributes, this was often practically limited. Data is often only available in unstructured form and deanonymization used to require human investigators to search and reason based on clues. We show that from a handful of comments, LLMs can infer where you live, what you do, and your interests—then search for you on the web. In our new research, we show that this is not only possible but increasingly practical...
Friday Squid Blogging: Squid Fishing in Peru
Peru has increased its squid catch limit. The article says “giant squid,” but they can’t possibly mean that.
As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered.
Why Tehran’s Two-Tiered Internet Is So Dangerous
Iran is slowly emerging from the most severe communications blackout in its history and one of the longest in the world. Triggered as part of January’s government crackdown against citizen protests nationwide, the regime implemented an internet shutdown that transcends the standard definition of internet censorship. This was not merely blocking social media or foreign websites; it was a total communications shutdown.
Unlike previous Iranian internet shutdowns where Iran’s domestic intranet—the National Information Network (NIN)—remained functional to keep the banking and administrative sectors running, the 2026 blackout ...
LLMs Generate Predictable Passwords
LLMs are bad at generating passwords:
There are strong noticeable patterns among these 50 passwords that can be seen easily:
- All of the passwords start with a letter, usually uppercase G, almost always followed by the digit 7.
- Character choices are highly uneven for example, L , 9, m, 2, $ and # appeared in all 50 passwords, but 5 and @ only appeared in one password each, and most of the letters in the alphabet never appeared at all.
- There are no repeating characters within any password. Probabilistically, this would be very unlikely if the passwords were truly random but Claude preferred to avoid repeating characters, possibly because it “looks like it’s less random”. ...
