[Bug][cyber] Safeguard wrongly blocked reverse-engineering a proprietary app's protocol for FOSS interop tool (req_011CccTPiJRL8nrKhJfsAvKa)

Triage: kind cyber · domain general · 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

Here's a tight explanation for the bug report:

This block triggered on a benign interoperability-research task: writing a ground-control application for hardware the requester owns, based on analyzing an existing vendor application's communication protocol. This is standard reverse-engineering-for-interoperability work (comparable to writing an alternate client for a device you own), not an attack against third-party systems or infrastructure. The cybersecurity classifier appears to be pattern-matching on protocol/decompilation terminology without distinguishing "analyzing my own device's protocol to build a compatible client" from actual offensive security work against systems the requester doesn't control.

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 2026-07-02T02:39:07.446Z.

Request IDs (lookup-able server-side)

• req_011CccTPiJRL8nrKhJfsAvKa (2026-07-02T02:39:07.446Z)

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 (1M context)'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?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/8106465

Request ID: req_011CccTMDQ42jNFmptqRaq8h

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:
#73039, #73040, #73048, #73106, #73108, #73109, #73110, #73112, #73113, #73119, #73120, #73121, #73123

---
_{🔎 Filed automatically by ClAudit v2.0.99 — a FOSS tool for reporting false-positive Claude Code blocks.}