Schneier on Security

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  1. Friday Squid Blogging: New Jurassic Squid Predecessors

    · schneier.com · Bruce Schneier

    News story: “ Scientists discover a bizarre Jurassic ‘squid’ unlike anything ever seen .” Scientists have identified the “fattest” belemnite ever discovered, a bizarre, barrel-shaped squid relative that lived in Wyoming’s ancient seas 160 million years ago. The exceptionally rare fossils reveal a…

  2. Pinpointing Location of Videos from Background Airplane Sounds

    · schneier.com · Bruce Schneier

    This is fascinating : The video describes a technique that can reveal where an otherwise unidentifiable recording was made by analyzing its audio for the faint sounds of passing aircraft. The technique is both fascinating and frightening. It works by looking at Doppler curves, which plot the way a…

  3. AIs Hacking the Law

    · schneier.com · Bruce Schneier

    In both a 2021 essay and my 2022 book, A Hacker’s Mind , I talk about AIs finding vulnerabilities and exploits—hacking—the legal system. Here’s some demonstrations of this from Germany: Legal systems encode the foundations of social order in natural language. Similar to computer systems, the…

  4. AI Vulnerability Finding

    · schneier.com · Bruce Schneier

    A comment : 3% of ‘critical’ software security bugs, in all of recorded history, have been found in the last month. This is on pace to find another ~100,000 bugs this year alone, adding ~26% more vulnerabilities to the all time total Do you realize how fucking insane that is? Yes. It is a new world…

  5. Friday Squid Blogging: Bigfin Squid Off California Coast

    · schneier.com · Bruce Schneier

    Neat video : The sighting, announced September 2, marks the first time anyone has spotted a live bigfin squid, which belongs to the Magnapinna genus, in the northeastern Pacific Ocean. As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered…

  6. Bloatware in Aftermarket Auto Parts

    · schneier.com · Bruce Schneier

    This story is interesting: One Civic owner purchased a cheap aftermarket head unit off Amazon, and decided to have Claude work its magic on it, like it would a smart TV. What was reportedly discovered isn’t surprising, but is worth knowing about. Among the pre-installed bloatware—­or spyware, if…

  7. Studying Fraudulent North Korean IT Workers

    · schneier.com · Bruce Schneier

    Researchers set up a fake start-up company to study fraudulent North Korean IT workers.

  8. Hiding Capabilities in AI Models

    · schneier.com · Bruce Schneier

    Interesting research: “ AI Models Can Provably Hide Arbitrary Capabilities ” Abstract: Capability evaluations aim to surface dangerous model behaviors before deployment, but their reliability depends on the assumption that hidden capabilities can be elicited. We show this assumption does not hold…

  9. Bias in Qwen3-Coder Model

    · schneier.com · Bruce Schneier

    Interesting research : TL;DR: Chinese AI models now sit inside Western products, and some carry geopolitical triggers: tell the model who the code is for, and the security of what it writes changes. For the first time, we showed that this vulnerability lives in the model’s weights, and that…

  10. Friday Squid Blogging: Increasing Squid Populations

    · schneier.com · Bruce Schneier

    This article in Nature argues that it’s due to an overfishing of predators and warming sea temperatures. As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered. Blog moderation policy.

  11. Compromised TLS Certificates

    · schneier.com · Bruce Schneier

    The Indian CA eMudhra Limited has eight TLS certificates with laughably weak private keys : The compromised eMudhra keys were defective at a level that’s challenging the imagination of many of the engineers studying the incident. A normal size for a NIST P-384 elliptic curve cryptography private…

  12. New Serious PHP Vulnerabilities Released and Patched

    · schneier.com · Bruce Schneier

    PHP maintainers have released fixes for two critical vulnerabilities: PHP 8.5.12, 8.4.27, 8.3.36 and 8.2.35 fix two critical vulnerabilities that can allow unauthenticated remote code execution. All PHP users are strongly encouraged to update immediately. Who is at risk: all PHP installations…

  13. Workshop on Economics and Information Security (WEIS) Archive

    · schneier.com · Bruce Schneier

    There’s a new archive of all the papers from twenty-five years of the Workshop on Economics and Information Security (WEIS). Really nice resource. It’s fun to reread my 2002 essay on the economics of information security.

  14. Possible new Cellebrite iPhone Radio Zero-Day

    · schneier.com · Bruce Schneier

    Justin.sh is reporting on a confidential Cellebrite document that has been leaked to him: Cellebrite calls it Advanced Unlocks (AU from here on), not to be confused with the “advanced unlocking services” they’ve marketed for years. A press release from earlier this year confirms AU is a new product…

  15. Training AIs to Solve CAPTCHAs

    · schneier.com · Bruce Schneier

    Interesting research : Abstract : Vision-language models (VLMs) can solve visual CAPTCHAs without task-specific training, but the agents built on them approach every challenge from scratch. For such an agent, the hundredth instance of a familiar puzzle costs as much time and compute as the first…

  16. Friday Squid Blogging: Squid Before the Chicxulub Meteor Impact

    · schneier.com · Bruce Schneier

    New research shows that squid lived all around the globe even before the Cretaceous-Paleogene mass extinction event. As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered. Blog moderation policy.

  17. Backdooring Open-Weight AI Models

    · schneier.com · Bruce Schneier

    This is a problem: Any open model whose weights have been edited can carry a backdoor, whether it’s a task-specific fine-tune, a merged adapter or an abliterated build. We have abliterated models in the title because it’s the most popular reason people download modified weights without verifying…

  18. Measuring Human Cryptanalysis Effort

    · schneier.com · Bruce Schneier

    Matthew Green has a new site that tries to estimate the number of cryptanalyst-hours that have been spent analyzing different public-key algorithms: Abstract: We estimate how much public cryptanalysis each public-key assumption has received, using the literature itself as the instrument. From…

  19. Upcoming Speaking Engagements

    · schneier.com · Bruce Schneier

    This is a current list of where and when I am scheduled to speak: I’m speaking at ATTENTION: Democracy, Rebuilt in Montreal, Canada. The event runs October 21–23, 2026, and my talk is on Wednesday, October 21. I’m speaking at the University of Toronto in Toronto, Ontario, Canada, at 5 PM ET on…

  20. The Future of AI Cryptanalysis

    · schneier.com · Bruce Schneier

    Matthew Green has been writing a rather pessimistic series of posts about the potential for AI systems to vastly outperform humans in cryptanalysis of both symmetric and public-key ciphers. I am more optimistic than he is. That is, I have stronger faith in the over-engineering cryptographers tend…

In the directory since 25 Sept 2026 · last checked 9 Nov 2026 · ATOM

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