AI Matters

Why it matters

Anthropic reveals its biological weapons filter was down for a year

The Decoder Anthropic's bio-weapons filter was down for nearly a year, exposing 133 million requests

Anthropic disclosed that its internal filtering system for biological and chemical weapons risks was inactive for nearly a year, exposing 133 million user requests.

Why it matters

The failure highlights the fragility of current AI safety guardrails, showing how easily critical protections can fail without immediate detection.