[Bug][cyber] Safety block halts defensive BEC incident response: investigating account-takeover timeline and s (req_011CcPJ1k5NUbeRJFT7FuGK6)
Type: Cybersecurity safety-filter false positive · Work domain (heuristic): offensive-pentest
Why this is a false positive
This Claude Code session was performing an authorized email-security incident investigation — analyzing a business email compromise (BEC) / invoice-fraud phishing payload and tracing how an internal mailbox was accessed — which is defensive incident response, not offensive cyberattack development. The conversation was repeatedly interrupted mid-investigation by a safety block that misclassified this defensive, in-scope security work as a disallowed cybersecurity topic, preventing completion of a routine forensic report and remediation. The request involved no exploit code, malware, intrusion tooling, or targeting of third parties, so the block is a false positive on legitimate defensive 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 2026-06-25T03:48:21.863Z.
Request IDs (lookup-able server-side)
req_011CcPJ1k5NUbeRJFT7FuGK6(2026-06-25T03:48:21.863Z)
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_011CcPJ1k5NUbeRJFT7FuGK6
Environment: Claude Code, Linux. · Work domain: offensive-pentest
---
<sub>🔎 Filed automatically by ClAudit v1.6.5 — a FOSS tool for reporting false-positive Claude Code blocks.</sub>