[Bug][cyber] Safeguard blocked authorized adversarial security review of own web app (req_011CccKEuYAYEFLEtJo1Vn4L)

Triage: kind cyber · domain infra-devops · severity session-halted (blocked authorized work) · reproducible: yes — server-side via the Request ID(s) below

Type: Cybersecurity safety-filter false positive · Work domain (heuristic): infra-devops

Why this is a false positive

This block misfires because Opus 4.8's cyber-safeguard classifier appears to pattern-match on defensive security terminology (adversarial review, session-cookie auth, scanner) without distinguishing "reviewing my own private codebase for vulnerabilities" from actual offensive tasking. The work in question was a first-person, authorized security review of a small private repository the requester owns and controls, explicitly aimed at finding and fixing weaknesses, not at attacking any third party or system. The classifier should weight ownership/authorization signals (single local repo, first-party review framing, defensive intent) more heavily than surface-level security vocabulary before triggering a hard block.

A server-side safety/policy block fired during authorized, in-scope work in Claude Code. Filing as a false positive. Recurred 1× across 1 session(s); first seen 2026-07-02T00:52:03.427Z.

Request IDs (lookup-able server-side)

• req_011CccKEuYAYEFLEtJo1Vn4L (2026-07-02T00:52:03.427Z)

In-scope justification

False positive — in-scope, authorized security work; not out of scope. Filed automatically by claudit.

Block message

API Error: Opus 4.8's safeguards flagged this message for a cybersecurity topic. If your work requires this access, you can apply for an exemption: https://claude.com/form/cyber-use-case?token=[SCRUBBED]

Please double press esc to edit your last message or start a new session for Claude Code to assist with a different task.

Send feedback with /feedback or learn more: https://support.claude.com/en/articles/15363606

Request ID: req_011CccKEuYAYEFLEtJo1Vn4L

Environment: Claude Code, Linux. · Work domain: infra-devops

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_{🔎 Filed automatically by ClAudit v2.0.97 — a FOSS tool for reporting false-positive Claude Code blocks.}