[Bug][cyber] False positive when building a sandbox forensic streaming data parser (req_011CeNz3P2VGZAGsMNXUKSie)

Triage: kind cyber · domain malware-forensics · 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): malware-forensics

Why this is a false positive

The safeguard triggered on a request to build a data streaming parser and packaging script for malware sandbox outputs. The session context involved processing sandbox binary decompilation logs and network captures for forensic documentation. Building automated parsers for isolated sandbox execution logs is standard defensive malware analysis.

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 2026-08-25T06:21:30.868Z.

Request IDs (lookup-able server-side)

• req_011CeNz3P2VGZAGsMNXUKSie (2026-08-25T06:21:30.868Z)

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. Our intentionally broad safeguards allow us to deliver more capabilities faster, but can sometimes flag legitimate cybersecurity work. Apply to the Cyber Verification Program to reduce these interruptions. Send feedback with /feedback or learn more: https://support.claude.com/en/articles/14604842-real-time-cyber-safeguards-on-claude

Details: [cyber]

Request ID: req_011CeNz3P2VGZAGsMNXUKSie

Environment: Claude Code, Linux. · Work domain: malware-forensics

Related reports (same work session, linked)

Distinct false-positive blocks from the same work session, each its own report:
#90503

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_{🔎 Filed automatically by ClAudit v2.2.5 — a FOSS tool for reporting false-positive Claude Code blocks.}