[Bug] Anthropic API Error: Cyber Safeguards Flagged Legitimate Request
Status Open
Reported on v2.1.299
Maintainer reply None cached
Activity 0 comments · opened Oct 14, 2026
Bug Description
API Error: Mythos 5.1's safeguards flagged this message. Our intentionally broad safeguards allow us to deliver more capabilities faster, but can sometimes flag legitimate cybersecurity work. Send feedback with /feedback or learn more: https://support.claude.com/en/articles/14604842-real-time-cyber-safeguards-on-claude
Details: [cyber]
Request ID: req_011Cg2FisA7961x7JRMZXPCo
Message ID: msg_011Cg2Fist27uddECqaD1qoM
Environment Info
- Platform: win32
- Terminal: null
- Version: 2.1.299
- Feedback ID: dc6c3ae1-c3a4-4486-9ec0-3a0b87bb4bd7