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Sameer Khan
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Cybersecurity

4 posts

Nobody Trained GPT-5.5 to Hack. It Beat Human Cyber Experts Anyway.
Security·

Nobody Trained GPT-5.5 to Hack. It Beat Human Cyber Experts Anyway.

GPT-5.5 hit 71% on AISI's expert cyber tasks, beating Mythos. AISI says cyber is emerging as a byproduct of reasoning. What that means for defenders.

CybersecurityOpenAIAI Safety
OpenAI's GPT-5.4-Cyber is defender tooling shipped before the next capability jump
Security·

OpenAI's GPT-5.4-Cyber is defender tooling shipped before the next capability jump

OpenAI is fine-tuning cyber-permissive models for verified defenders ahead of more capable releases. GPT-5.4-Cyber is the first of the tier, explained.

OpenAIAI SafetyCybersecurity
Claude Mythos Is the First AI to Complete a Full Corporate Cyberattack End-to-End
Security·

Claude Mythos Is the First AI to Complete a Full Corporate Cyberattack End-to-End

AISI watched the model pop shells, exfiltrate data, cover tracks. Three months ago the ceiling was 11 of 32 steps. Mythos finished all 32.

CybersecurityClaudeAutonomous AI
Project Glasswing: Anthropic and 12 Tech Giants Built an AI That Finds Thousands of Vulnerabilities. They Won't Release It.
AI·

Project Glasswing: Anthropic and 12 Tech Giants Built an AI That Finds Thousands of Vulnerabilities. They Won't Release It.

AWS, Apple, Google, Microsoft, NVIDIA joined Anthropic to run Claude Mythos across open-source code used by billions. What they found stayed internal.

CybersecurityClaudeOpen Source