Schneier on Security
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Friday Squid Blogging: Squid Camouflage

New research: Abstract: Coleoid cephalopods have the most elaborate camouflage system in the animal kingdom. This enables them to hide from or deceive both predators and prey. Most studies have focused on benthic species of octopus and cuttlefish, while…
Friday Squid Blogging: Squid Camouflage
New research: Abstract: Coleoid cephalopods have the most elaborate camouflage system in the animal kingdom. This enables them to hide from or deceive both predators and prey. Most studies have focused on benthic species of octopus and cuttlefish, while studies on squid focused mainly on the chromatophore system for communication. Camouflage adaptations to the substrate while moving has been recently described in the semi-pelagic oval squid (Sepioteuthis lessoniana).
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December 26, 2025 at 10:09 PM
IoT Hack

Someone hacked an Italian ferry. It looks like the malware was installed by someone on the ferry, and not remotely.
IoT Hack
Someone hacked an Italian ferry. It looks like the malware was installed by someone on the ferry, and not remotely.
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December 26, 2025 at 12:03 PM
Urban VPN Proxy Surreptitiously Intercepts AI Chats

This is pretty scary: Urban VPN Proxy targets conversations across ten AI platforms: ChatGPT, Claude, Gemini, Microsoft Copilot, Perplexity, DeepSeek, Grok (xAI), Meta AI. For each platform, the extension includes a dedicated "executor" script…
Urban VPN Proxy Surreptitiously Intercepts AI Chats
This is pretty scary: Urban VPN Proxy targets conversations across ten AI platforms: ChatGPT, Claude, Gemini, Microsoft Copilot, Perplexity, DeepSeek, Grok (xAI), Meta AI. For each platform, the extension includes a dedicated "executor" script designed to intercept and capture conversations. The harvesting is enabled by default through hardcoded flags in the extension's configuration. There is no user-facing toggle to disable this.
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December 24, 2025 at 12:03 PM
Denmark Accuses Russia of Conducting Two Cyberattacks

News: The Danish Defence Intelligence Service (DDIS) announced on Thursday that Moscow was behind a cyber-attack on a Danish water utility in 2024 and a series of distributed denial-of-service (DDoS) attacks on Danish websites in the lead-up to…
Denmark Accuses Russia of Conducting Two Cyberattacks
News: The Danish Defence Intelligence Service (DDIS) announced on Thursday that Moscow was behind a cyber-attack on a Danish water utility in 2024 and a series of distributed denial-of-service (DDoS) attacks on Danish websites in the lead-up to the municipal and regional council elections in November. The first, it said, was carried out by the pro-Russian group known as Z-Pentest and the second by NoName057(16), which has links to the Russian state. Slashdot thread.
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December 23, 2025 at 12:02 PM
Microsoft Is Finally Killing RC4

After twenty-six years, Microsoft is finally upgrading the last remaining instance of the encryption algorithm RC4 in Windows. of the most visible holdouts in supporting RC4 has been Microsoft. Eventually, Microsoft upgraded Active Directory to support the much…
Microsoft Is Finally Killing RC4
After twenty-six years, Microsoft is finally upgrading the last remaining instance of the encryption algorithm RC4 in Windows. of the most visible holdouts in supporting RC4 has been Microsoft. Eventually, Microsoft upgraded Active Directory to support the much more secure AES encryption standard. But by default, Windows servers have continued to respond to RC4-based authentication requests and return an RC4-based response.
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December 22, 2025 at 5:05 PM
Friday Squid Blogging: Petting a Squid

Video from Reddit shows what could go wrong when you try to pet a -- looks like a Humboldt -- squid. 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.
Friday Squid Blogging: Petting a Squid
Video from Reddit shows what could go wrong when you try to pet a -- looks like a Humboldt -- squid. 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.
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December 19, 2025 at 10:07 PM
AI Advertising Company Hacked

At least some of this is coming to light: Doublespeed, a startup backed by Andreessen Horowitz (a16z) that uses a phone farm to manage at least hundreds of AI-generated social media accounts and promote products has been hacked. The hack reveals what products the…
AI Advertising Company Hacked
At least some of this is coming to light: Doublespeed, a startup backed by Andreessen Horowitz (a16z) that uses a phone farm to manage at least hundreds of AI-generated social media accounts and promote products has been hacked. The hack reveals what products the AI-generated accounts are promoting, often without the required disclosure that these are advertisements, and allowed the hacker to take control of more than 1,000 smartphones that power the company.
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December 19, 2025 at 12:03 PM
Someone Boarded a Plane at Heathrow Without a Ticket or Passport

I'm sure there's a story here: Sources say the man had tailgated his way through to security screening and passed security, meaning he was not detected carrying any banned items. The man deceived the BA check-in agent by posing as a…
Someone Boarded a Plane at Heathrow Without a Ticket or Passport
I'm sure there's a story here: Sources say the man had tailgated his way through to security screening and passed security, meaning he was not detected carrying any banned items. The man deceived the BA check-in agent by posing as a family member who had their passports and boarding passes inspected in the usual way.
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December 18, 2025 at 4:41 PM
Deliberate Internet Shutdowns

For two days in September, Afghanistan had no internet. No satellite failed; no cable was cut. This was a deliberate outage, mandated by the Taliban government. It followed a more localized shutdown two weeks prior, reportedly instituted "to prevent immoral…
Deliberate Internet Shutdowns
For two days in September, Afghanistan had no internet. No satellite failed; no cable was cut. This was a deliberate outage, mandated by the Taliban government. It followed a more localized shutdown two weeks prior, reportedly instituted "to prevent immoral activities." No additional explanation was given. The timing couldn't have been worse: communities still reeling from a major earthquake…
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December 17, 2025 at 12:02 PM
Chinese Surveillance and AI

New report: "The Party's AI: How China's New AI Systems are Reshaping Human Rights." From a summary article: China is already the world's largest exporter of AI powered surveillance technology; new surveillance technologies and platforms developed in China are also not…
Chinese Surveillance and AI
New report: "The Party's AI: How China's New AI Systems are Reshaping Human Rights." From a summary article: China is already the world's largest exporter of AI powered surveillance technology; new surveillance technologies and platforms developed in China are also not likely to simply stay there. By exposing the full scope of China's AI driven control apparatus, this report presents clear, evidence based insights for policymakers, civil society, the media and technology companies seeking to counter the rise of AI enabled repression and human rights violations, and China's growing efforts to project that repression beyond its borders.
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December 16, 2025 at 12:03 PM
Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: I’m speaking and signing books at the Chicago Public Library in Chicago, Illinois, USA, at 6:00 PM CT on February 5, 2026. Details to come. I’m speaking at Capricon 44 in Chicago, Illinois, USA. The…
Upcoming Speaking Engagements
This is a current list of where and when I am scheduled to speak: I’m speaking and signing books at the Chicago Public Library in Chicago, Illinois, USA, at 6:00 PM CT on February 5, 2026. Details to come. I’m speaking at Capricon 44 in Chicago, Illinois, USA. The convention runs February 5-8, 2026. My speaking time is TBD. I’m speaking at the…
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December 14, 2025 at 5:10 PM
Friday Squid Blogging: Giant Squid Eating a Diamondback Squid

I have no context for this video -- it's from Reddit -- but one of the commenters adds some context: Hey everyone, squid biologist here! Wanted to add some stuff you might find interesting. With so many people carrying around cameras,…
Friday Squid Blogging: Giant Squid Eating a Diamondback Squid
I have no context for this video -- it's from Reddit -- but one of the commenters adds some context: Hey everyone, squid biologist here! Wanted to add some stuff you might find interesting. With so many people carrying around cameras, we're getting more videos of giant squid at the surface than in previous decades. We're also starting to notice a pattern, that around this time of year (peaking in January) we see a bunch of giant squid around Japan.
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December 12, 2025 at 10:01 PM
Against the Federal Moratorium on State-Level Regulation of AI

Cast your mind back to May of this year: Congress was in the throes of debate over the massive budget bill. Amidst the many seismic provisions, Senator Ted Cruz dropped a ticking time bomb of tech policy: a ten-year moratorium on the…
Against the Federal Moratorium on State-Level Regulation of AI
Cast your mind back to May of this year: Congress was in the throes of debate over the massive budget bill. Amidst the many seismic provisions, Senator Ted Cruz dropped a ticking time bomb of tech policy: a ten-year moratorium on the ability of states to regulate artificial intelligence. To many, this was catastrophic. The few massive AI companies seem to be swallowing our economy whole: their energy demands are overriding household needs, their data demands are overriding creators' copyright, and their products are triggering mass unemployment as well as new types of clinical…
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December 12, 2025 at 5:52 PM
Building Trustworthy AI Agents

The promise of personal AI assistants rests on a dangerous assumption: that we can trust systems we haven’t made trustworthy. We can’t. And today’s versions are failing us in predictable ways: pushing us to do things against our own best interests, gaslighting us…
Building Trustworthy AI Agents
The promise of personal AI assistants rests on a dangerous assumption: that we can trust systems we haven’t made trustworthy. We can’t. And today’s versions are failing us in predictable ways: pushing us to do things against our own best interests, gaslighting us with doubt about things we are or that we know, and being unable to distinguish between who we are and who we have been.
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December 12, 2025 at 10:26 AM
AIs Exploiting Smart Contracts

I have long maintained that smart contracts are a dumb idea: that a human process is actually a security feature. Here's some interesting research on training AIs to automatically exploit smart contracts: AI models are increasingly good at cyber tasks, as we've…
AIs Exploiting Smart Contracts
I have long maintained that smart contracts are a dumb idea: that a human process is actually a security feature. Here's some interesting research on training AIs to automatically exploit smart contracts: AI models are increasingly good at cyber tasks, as we've written about before. But what is the economic impact of these capabilities? In a recent MATS and Anthropic Fellows project, our scholars investigated this question by evaluating AI agents' ability to exploit smart contracts on…
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December 11, 2025 at 5:06 PM
FBI Warns of Fake Video Scams

The FBI is warning of AI-assisted fake kidnapping scams: Criminal actors typically will contact their victims through text message claiming they have kidnapped their loved one and demand a ransom be paid for their release. Oftentimes, the criminal actor will express…
FBI Warns of Fake Video Scams
The FBI is warning of AI-assisted fake kidnapping scams: Criminal actors typically will contact their victims through text message claiming they have kidnapped their loved one and demand a ransom be paid for their release. Oftentimes, the criminal actor will express significant claims of violence towards the loved one if the ransom is not paid immediately. The criminal actor will then send what appears to be a genuine photo or video of the victim's loved one, which upon close inspection often reveals inaccuracies when compared to confirmed photos of the loved one.
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December 10, 2025 at 12:07 PM
AI vs. Human Drivers

Two competing arguments are making the rounds. The first is by a neurosurgeon in the New York Times. In an op-ed that honestly sounds like it was paid for by Waymo, the author calls driverless cars a "public health breakthrough": In medical research, there’s a practice of…
AI vs. Human Drivers
Two competing arguments are making the rounds. The first is by a neurosurgeon in the New York Times. In an op-ed that honestly sounds like it was paid for by Waymo, the author calls driverless cars a "public health breakthrough": In medical research, there’s a practice of ending a study early when the results are too striking to ignore. We stop when there is unexpected harm.
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December 9, 2025 at 12:08 PM
Substitution Cipher Based on The Voynich Manuscript

Here's a fun paper: "The Naibbe cipher: a substitution cipher that encrypts Latin and Italian as Voynich Manuscript-like ciphertext": Abstract: In this article, I investigate the hypothesis that the Voynich Manuscript (MS 408, Yale University…
Substitution Cipher Based on The Voynich Manuscript
Here's a fun paper: "The Naibbe cipher: a substitution cipher that encrypts Latin and Italian as Voynich Manuscript-like ciphertext": Abstract: In this article, I investigate the hypothesis that the Voynich Manuscript (MS 408, Yale University Beinecke Library) is compatible with being a ciphertext by attempting to develop a historically plausible cipher that can replicate the manuscript’s unusual properties. The resulting cipher­a verbose homophonic substitution cipher I call the Naibbe cipher­can be done entirely by hand with 15th-century materials, and when it encrypts a wide range of Latin and Italian plaintexts, the resulting ciphertexts remain fully decipherable and also reliably reproduce many key statistical properties of the Voynich Manuscript at once. My results suggest that the so-called "ciphertext hypothesis" for the Voynich Manuscript remains viable, while also placing constraints on plausible substitution cipher structures.
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December 8, 2025 at 12:05 PM
Friday Squid Blogging: Vampire Squid Genome

The vampire squid (Vampyroteuthis infernalis) has the largest cephalopod genome ever sequenced: more than 11 billion base pairs. That's more than twice as large as the biggest squid genomes. It's technically not a squid: "The vampire squid is a…
Friday Squid Blogging: Vampire Squid Genome
The vampire squid (Vampyroteuthis infernalis) has the largest cephalopod genome ever sequenced: more than 11 billion base pairs. That's more than twice as large as the biggest squid genomes. It's technically not a squid: "The vampire squid is a fascinating twig tenaciously hanging onto the cephalopod family tree. It's neither a squid nor an octopus (nor a vampire), but rather the last, lone remnant of an ancient lineage whose other members have long since vanished." 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.
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December 5, 2025 at 10:06 PM
New Anonymous Phone Service

A new anonymous phone service allows you to sign up with just a zip code.
New Anonymous Phone Service
A new anonymous phone service allows you to sign up with just a zip code.
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December 5, 2025 at 8:08 AM
Like Social Media, AI Requires Difficult Choices

In his 2020 book, "Future Politics," British barrister Jamie Susskind wrote that the dominant question of the 20th century was "How much of our collective life should be determined by the state, and what should be left to the market and civil…
Like Social Media, AI Requires Difficult Choices
In his 2020 book, "Future Politics," British barrister Jamie Susskind wrote that the dominant question of the 20th century was "How much of our collective life should be determined by the state, and what should be left to the market and civil society?" But in the early decades of this century, Susskind suggested that we face a different question: "To what extent should our lives be directed and controlled by powerful digital systems—and on what terms?"
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December 2, 2025 at 12:04 PM
Banning VPNs

This is crazy. Lawmakers in several US states are contemplating banning VPNs, because...think of the children! As of this writing, Wisconsin lawmakers are escalating their war on privacy by targeting VPNs in the name of "protecting children" in A.B. 105/S.B. 130. It’s an age…
Banning VPNs
This is crazy. Lawmakers in several US states are contemplating banning VPNs, because...think of the children! As of this writing, Wisconsin lawmakers are escalating their war on privacy by targeting VPNs in the name of "protecting children" in A.B. 105/S.B. 130. It’s an age verification bill that requires all websites distributing material that could conceivably be deemed "sexual content" to both implement an age verification system and also to block the access of users connected via VPN.
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December 1, 2025 at 1:00 PM
Friday Squid Blogging: Flying Neon Squid Found on Israeli Beach

A meter-long flying neon squid (Ommastrephes bartramii) was found dead on an Israeli beach. The species is rare in the Mediterranean.
Friday Squid Blogging: Flying Neon Squid Found on Israeli Beach
A meter-long flying neon squid (Ommastrephes bartramii) was found dead on an Israeli beach. The species is rare in the Mediterranean.
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November 28, 2025 at 8:57 PM
Prompt Injection Through Poetry

In a new paper, "Adversarial Poetry as a Universal Single-Turn Jailbreak Mechanism in Large Language Models," researchers found that turning LLM prompts into poetry resulted in jailbreaking the models:
Prompt Injection Through Poetry
In a new paper, "Adversarial Poetry as a Universal Single-Turn Jailbreak Mechanism in Large Language Models," researchers found that turning LLM prompts into poetry resulted in jailbreaking the models: <blockquoteAbstract: We present evidence that adversarial poetry functions as a universal single-turn jailbreak technique for Large Language Models (LLMs). Across 25 frontier proprietary and open-weight models, curated poetic prompts yielded high attack-success rates (ASR), with some providers exceeding 90%.
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November 28, 2025 at 2:54 PM
Huawei and Chinese Surveillance

This quote is from House of Huawei: The Secret History of China's Most Powerful Company. "Long before anyone had heard of Ren Zhengfei or Huawei, Wan Runnan had been China's star entrepreneur in the 1980s, with his company, the Stone Group, touted as "China's IBM."…
Huawei and Chinese Surveillance
This quote is from House of Huawei: The Secret History of China's Most Powerful Company. "Long before anyone had heard of Ren Zhengfei or Huawei, Wan Runnan had been China's star entrepreneur in the 1980s, with his company, the Stone Group, touted as "China's IBM." Wan had believed that economic change could lead to political change. He had thrown his support behind the pro-democracy protesters in 1989.
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November 26, 2025 at 12:05 PM