# Malicious Anthropic Claude Extensions Hit Thousands via Supply Chain Attack

A supply chain attack placed malicious extensions for Anthropic's Claude AI on thousands of devices. The incident highlights how third-party dependencies and AI tooling can expose users to broad compromise.

**Importance:** 4/5

## Sources

### Technology
- [Wired](https://www.wired.com/story/trojan-malware-targets-thousands-of-anthropic-claude-developer-systems/) — Fri, 30 Oct 2026 20:38:46 +0000