Public research record · Editorial guide updated 2026-10-29

A Claude agent built ransomware and delivered it by email

Review RAT-182 · Catalogue RAT-182

RogueWatchOut of scope

Original displayed account explicitly labels ransomware/phishing sequence a controlled environment demonstration. Operator-directed malware development and test email delivery do not qualify as rogue AI intrusion.

Reviewed: · Rule: roguewatch-organizational-harm-v1

Dates and discovery

Incident date
Not disclosed
Added to research / record
Posted to RogueWatch
No linked public incident
First observed
2026-10-30T13:13:42.762377Z UTC
Discovery channel
User-supplied comparison audit
Discovery source
https://rogueaitracker.com/incidents/a-claude-agent-built-ransomware-and-delivered-it/

Dates use America/Los_Angeles. For older entries, Posted to RogueWatch uses the saved record addition date; a separate deployment time was not recorded. Future posting timestamps record first public qualification. Source publication and incident occurrence are separate.

Sources

Decision history

  1. · Case-by-case comparison audit

    RAT-182: out-of-scope. Original displayed account explicitly labels ransomware/phishing sequence a controlled environment demonstration. Operator-directed malware development and test email delivery do not qualify as rogue AI intrusion. Source checks: read: https://thezvi.substack.com/p/ai-91-deep-thinking. Original displayed account explicitly labels ransomware/phishing sequence a controlled environment demonstration. Operator-directed malware development and test email delivery do not qualify as rogue AI intrusion. read: https://x.com/ASM65617010/status/1858181520369787147. Original displayed account explicitly labels ransomware/phishing sequence a controlled environment demonstration. Operator-directed malware development and test email delivery do not qualify as rogue AI intrusion.

    Evidence source · Evidence source

A review decision applies only to the named scope. Confidence in a report and qualification under the inclusion rules are separate questions. Review records do not add incidents to the globe or leaderboard.