AI Matters

Why it matters

Anthropic reveals bio-weapons filter was inactive for nearly a year

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

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

Why it matters

This safety lapse allowed millions of unfiltered queries, highlighting the difficulty of maintaining consistent guardrails as models scale.