Mexican government agencies hacked using Anthropic's Claude AI
Anthropic's Claude large language model was weaponized by attackers to compromise numerous Mexican government agencies over a month-long campaign starting December 2025. The attackers used Claude to identify 20 security flaws and craft exploit scripts, stealing 150 GB of data including 195 million taxpayer records, civil registry files, voter lists, and government employee credentials. Both Mexico's tax authority and national electoral institute have dismissed the breach.
- Date it happened
- 2025-12-01
- Organisation involved
- Anthropic
- Product, system or model
- Claude
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