[Bug] Cyber Safeguards Falsely Flag Benign Request, Blocking Opus 4.8 and 5

Status Open
Reported on v2.1.296
Maintainer reply None cached
Activity 0 comments · opened Oct 11, 2026

Bug Description
● Fable 5.1's safeguards stopped the response above · continuing once with that noted ● Fable 5.1's safeguards flagged this message. Our intentionally broad safeguards allow us to deliver more capabilities faster, but can sometimes flag legitimate coding and cybersecurity tasks. Switched to Opus 4.8. Send feedback with /feedback or learn more Details: [cyber] ⎿ Tip: You can configure model switch behavior in /config ● API Error: Opus 4.8's safeguards flagged this message. Our intentionally broad safeguards allow us to deliver more capabilities faster, but can sometimes flag legitimate cybersecurity work. Apply to the Cyber Verification Program to reduce these interruptions. 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_011Cfw3Ex36q5QsDW4p9To97 Message ID: msg_011Cfw3ExJjMvT2nekmmkZwD ✻ Cooked for 2s · done 10:56 PM ❯ /model ⎿ Set model to Opus 5 and saved as your default for new sessions ❯ instaleazaz kimi local ● Opus 5's safeguards stopped the response above · continuing once with that noted ● Opus 5's safeguards flagged this message. Our intentionally broad safeguards allow us to deliver more capabilities faster, but can sometimes flag legitimate coding and cybersecurity tasks. Switched to Opus 4.8. Send feedback with /feedback or learn more Details: [cyber] ⎿ Tip: You can configure model switch behavior in /config ● API Error: Opus 4.8's safeguards flagged this message. Our intentionally broad safeguards allow us to deliver more capabilities faster, but can sometimes flag legitimate cybersecurity work. Apply to the Cyber Verification Program to reduce these interruptions. 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_011Cfw3GGMCySvAaW12FMU4J Message ID: msg_011Cfw3GGa7VTyynaYhyCVYc

Environment Info

  • Platform: linux
  • Terminal: gnome-terminal
  • Version: 2.1.296
  • Feedback ID: a7942eb3-6d9e-472e-866b-f52ea0a318a2

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