SDSignal Desk

Desk

Cybersecurity

Security, safety, and adversarial ML.

AISep 18, 2026TechCrunch

Researchers used Anthropic’s Claude to hack into OpenAI

Hacktron AI used Claude—Opus 5 after Opus 4.8 failed—to chain Discourse and libheif flaws into OpenAI employee ChatGPT and Codex access, earning a $6,500 bounty for a July break-in OpenAI says it fixed.

AISep 9, 2026OpenAI

Paul Christiano joins OpenAI Foundation Board

OpenAI puts one of alignment's defining researchers on the Foundation Board and Safety and Security Committee—non-voting on the PBC board, but positioned to challenge how hard the lab pressures its own brakes.