[Bug][cyber] Defensive DMARC policy update blocked during email security hardening workflow (req_011CcQfzJ2zP8FvN2W96PWd9)

Triage: kind cyber · domain defensive-hardening · 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): defensive-hardening

Why this is a false positive

The block was triggered during routine defensive email security hardening — specifically configuring authentication and anti-spoofing policies (e.g., DMARC, anti-phishing rules) that are standard protective measures against inbound threats. This work involves no offensive techniques, exploit development, or vulnerability research; it is purely administrative configuration of built-in platform security controls. The safety filter appears to be pattern-matching on cybersecurity-adjacent terminology without distinguishing between offensive and defensive contexts, producing a false positive on entirely protective, in-scope IT work.

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 2026-06-25T21:17:02.361Z.

Request IDs (lookup-able server-side)

• req_011CcQfzJ2zP8FvN2W96PWd9 (2026-06-25T21:17:02.361Z)

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_011CcQfzJ2zP8FvN2W96PWd9

Environment: Claude Code, Linux. · Work domain: defensive-hardening

Related reports (same work session, linked)

Distinct false-positive blocks from the same work session, each its own report:
#71864

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_{🔎 Filed automatically by ClAudit v2.0.85 — a FOSS tool for reporting false-positive Claude Code blocks.}