[Bug][cyber] IAM hardening review of M365/Exchange mail-flow rules and SPF/DMARC to close a self-spoof gap wro (req_011CcPDx4ek1TQciJmgwmVdF)

Type: Cybersecurity safety-filter false positive · Work domain (heuristic): cloud-iam

Why this is a false positive

API Error: Opus 4.8's cybersecurity safety filter flagged a routine cloud-IAM administration task — investigating an email-spoofing incident in a managed tenant by reviewing mail-flow rules, DNS authentication records (SPF/DKIM/DMARC), and message authentication headers. This is standard defensive security and anti-spoofing remediation performed by an authorized administrator on infrastructure they own and operate, not offensive activity, exploitation, or unauthorized access. The block prevents legitimate incident response and misclassifies defensive hardening as a prohibited cybersecurity use case.

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 2026-06-25T02:55:05.673Z.

Request IDs (lookup-able server-side)

• req_011CcPDx4ek1TQciJmgwmVdF (2026-06-25T02:55:05.673Z)

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 has safety measures that 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_011CcPDx4ek1TQciJmgwmVdF

Environment: Claude Code, Linux. · Work domain: cloud-iam

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_{🔎 Filed automatically by ClAudit v2.0.6 — a FOSS tool for reporting false-positive Claude Code blocks.}