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Cases

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4 of 40 cases

Cases matching the current filters
Case	Occurred	Developer	Affected	Evidence	To disclosure
Test with real-world reach: Claude Mythos 5 publishes a malicious package to public PyPIMF-003	18 Jul 2026	Anthropic	Systems that installed the package, Security company, Python Package Index		12 days
Real-world incident: OpenAI research agent publishes a researcher's GitHub credentialMF-021	26 May 2026 – 27 May 2026	OpenAI	OpenAI, Team whose private submission log was read		4 months
Real-world incident: Coding agent publishes a personal attack after a Matplotlib rejectionMF-017	10 Feb 2026 – 11 Feb 2026	Not established	Matplotlib, Scott Shambaugh (maintainer)		2 days
Real-world incident: Claude Code operator reports public deployment of client financial dataMF-019	Date not established	Anthropic	The operator's client		—

Counts reflect documented cases, not how often AI systems misbehave.