[Bug][cyber] Safeguard false positive while linting embedded firmware before hardware flashing (req_011CevwJMC3ng8DapcoMg19x)

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

The safeguard flagged a session performing code verification following buffer overflow fixes in embedded C code. The prompt preceding the block requested static analysis and firmware build preparation for an attached development board. The interaction contained only software maintenance and hardware flashing instructions without exploit creation or payload deployment.

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 2026-09-11T03:24:34.739Z.

Request IDs (lookup-able server-side)

• req_011CevwJMC3ng8DapcoMg19x (2026-09-11T03:24:34.739Z)

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_011CevwJMC3ng8DapcoMg19x

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:
#94150, #94152, #94153, #94154, #94155

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