[Bug][cyber] Legitimate reverse engineering wrongly flagged as cybersecurity violation (req_011CcopGZJyKgAZef3GxbZ2h)

Triage: kind cyber · domain general · flagging model Opus 4.8 · 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): general

Why this is a false positive

User was conducting authorized reverse engineering of proprietary application code to understand authentication and cryptographic mechanisms in decompiled bytecode — legitimate security research performed on code under their control. The block incorrectly flagged a bash command performing static pattern analysis (searching for algorithm references in decompiled source text) as a cybersecurity violation, failing to distinguish between legitimate analytical work and actual malicious activity.

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 2026-07-08T02:39:26.042Z.

Request IDs (lookup-able server-side)

• req_011CcopGZJyKgAZef3GxbZ2h (2026-07-08T02:39:26.042Z)

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

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/8106465

Request ID: req_011CcopGZJyKgAZef3GxbZ2h

Environment: Claude Code, Linux. · Work domain: general

Related reports (same work session, linked)

Distinct false-positive blocks from the same work session, each its own report:
#75503, #75504, #75506

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_{🔎 Filed automatically by ClAudit v2.0.110 — a FOSS tool for reporting false-positive Claude Code blocks.}