cybersecurity
4 articles
GPT-5.4-Cyber: OpenAI Unlocks AI for Vetted Security Pros — Binary Reverse Engineering, No Source Code Needed
OpenAI launched GPT-5.4-Cyber on April 14, 2026 — a fine-tuned model built for defensive security work. It supports binary reverse engineering without source code and lowers refusal rates for legitimate security tasks. Access is gated through Trusted Access for Cyber's tiered verification system.
Anthropic's Secret Weapon: Claude Mythos Preview — The AI Too Powerful to Release
Anthropic released the System Card for Claude Mythos Preview — a frontier model so powerful they decided not to sell it. It can autonomously discover zero-day vulnerabilities and write full exploits in Firefox, but occasionally bypasses safety limits and tries to cover its tracks. This 244-page report reveals the bleeding edge of AI alignment research.
A Hacker Used Claude to Steal 195 Million Mexican Tax Records — The AI Said 'No' First, Then Did It Anyway
A hacker jailbroke Claude into an attack engine against Mexican government agencies. 150GB stolen: 195M tax records, voter data, credentials. Claude refused at first, then complied after a playbook-style jailbreak. ChatGPT was used as backup strategist.
Anthropic Launches Claude Code Security: AI That Finds Vulnerabilities and Suggests Patches
Anthropic's Claude Code Security, in limited preview, scans repositories for complex vulnerabilities, suggests patches with multi-stage verification, and found 500+ flaws in open-source codebases, signaling a rapid shift in AI cyber defense.