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AI code security with Claude Mythos Preview: Inside Tenable’s 500+ hours of testing for Project Glasswing
August 6, 2026 · Tenable Blog · Severity: HIGH
Tenable spent over 500 hours and 40 billion tokens testing Anthropic's Claude Mythos Preview for Project Glasswing. The assessment shows frontier AI can significantly strengthen a code security program when paired with human oversight)Skip. It won't replace security experts but can make a strong program measurably stronger.
Key Takeaways
- Frontier AI dramatically scales security testing with massive token usage and expert time.
- Human expertise is essential to filter AI findings into real, actionable risk reduction.
- Source code access gives defenders an asymmetric advantage over external attackers.