Anthropic launches OSS Scanner, free unreviewed Claude security scans for critical open-source projects

Launched Oct 8 under the new Anthropic Cyber Mission, OSS Scanner gives enrolled projects periodic scans from Anthropic's strongest models, with a proof of concept and suggested fix per bug, sent without human review (Anthropic expects a true-positive rate above 90%). It's opt-in for established projects with critical infrastructure or user-security impact, and maintainers enroll by opening a PR to the anthropics/oss-scanner repo.