How Dangerous Is Anthropic’s Mythos AI?
Last month, Anthropic made a remarkable announcement about its new model, Claude Mythos Preview: it was so good at finding security vulnerabilities in softwa...
Schneier on Security
16 articles
OpenAI’s GPT-5.5 is as Good as Mythos at Finding Security Vulnerabilities
The UK’s AI Security Institute evaluated GPT-5.5’s ability to find security vulnerabilities, and found that it is comparable to Claude Mythos.
Copy.Fail Linux Vulnerability
This is the worst Linux vulnerability in years. TL;DR copy.
LLMs and Text-in-Text Steganography
Turns out that LLMs are really good at hiding text messages in other text messages.
Friday Squid Blogging: Giant Squid Live in the Waters of Western Australia
Evidence of them has been found by analyzing DNA in the seawater. As usual, you can also use this squid post to talk about the security stories in the news t...
Insider Betting on Polymarket
Insider trading is rife on Polymarket: Analysis by the Anti-Corruption Data Collective, a non-profit research and advocacy group, found that long-shot bets—...
Smart Glasses for the Authorities
ICE is developing its own version of smart glasses, with facial recognition tied to various databases.
Rowhammer Attack Against NVIDIA Chips
A new rowhammer attack gives complete control of NVIDIA CPUs. On Thursday, two research teams, working independently of each other, demonstrated attacks agai...
DarkSword Malware
DarkSword is a sophisticated piece of malware—probably government designed—that targets iOS. Google Threat Intelligence Group (GTIG) has identified a new iOS...
Hacking Polymarket
Polymarket is a platform where people can bet on real-world events, political and otherwise. Leaving the ethical considerations of this aside (for one, it fa...
A Ransomware Negotiator Was Working for a Ransomware Gang
Someone pleaded guilty to secretly working for a ransomware gang as he negotiated ransomware payments for clients.
Claude Mythos Has Found 271 Zero-Days in Firefox
That’s a lot. No, it’s an extraordinary number: Since February, the Firefox team has been working around the clock using frontier AI models to find and fix l...
What Anthropic’s Mythos Means for the Future of Cybersecurity
Two weeks ago, Anthropic announced that its new model, Claude Mythos Preview, can autonomously find and weaponize software vulnerabilities, turning them into...
Medieval Encrypted Letter Decoded
Sent by a Spanish diplomat. Apparently people have been working on it since it was rediscovered in 1860.
Friday Squid Blogging: How Squid Survived Extinction Events
Science news: Scientists have finally cracked a long-standing mystery about squid and cuttlefish evolution by analyzing newly sequenced genomes alongside glo...
Hiding Bluetooth Trackers in Mail
It was used to track a Dutch naval ship: Dutch journalist Just Vervaart, working for regional media network Omroep Gelderland, followed the directions posted...