[Bug][cyber] Safeguard false positive during routine input validation code refactoring (req_011CePHPwAZ86JRZRz1zTRv3)

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 real-time cyber safeguard triggered during routine refactoring of string sanitization and input validation functions. The prompt contained standard source code analysis without exploit creation, attack payloads, or security bypass logic. Flagging non-malicious code review halts the session and prevents standard software engineering tasks.

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 2026-08-25T10:09:26.915Z.

Request IDs (lookup-able server-side)

• req_011CePHPwAZ86JRZRz1zTRv3 (2026-08-25T10:09:26.915Z)

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://[REDACTED]/en/articles/14604842-real-time-cyber-safeguards-on-claude

Details: [cyber]

Request ID: req_011CePEDvo6m4M6YiwTG3UJY

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:
#90831, #90833, #90835

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