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Vulnerability Research

Claude Opus 4.7 Drops with Built-In Cyber Safeguards: What Security Practitioners Need to Know

Anthropic shipped Claude Opus 4.7 today as its most capable generally available model, but the cybersecurity story is bigger than the benchmarks. The model includes automated safeguards that block high-risk cyber requests, deliberately reduced offensive capabilities compared to Mythos Preview, and a new Cyber Verification Program that gates legitimate security use behind a formal application process. This is the first generally available model where Anthropic is actively testing the controls it needs before it can release Mythos-class capabilities to the public.