TECHNOLOGYACTIVE
3 hours ago
Anthropic VS code extension on Cursor backdoored for nearly 12 hours
What's happening
SignalsMonitor is following this as a technology story. Ars Technica is the outlet attached so far. The first report grouped here was at 30 Oct 2026, 21:09 UTC. The headline in use is “Anthropic VS code extension on Cursor backdoored for nearly 12 hours”. This note is SignalsMonitor's own briefing, not the publisher's article.
What we know
An official extension for Anthropic’s Claude model was backdoored and threatened as many as 5,000 developers' machines, multiple sources reported Friday. Anthropic so far has yet to warn customers of the incident.
Ars TechnicaRead at Ars Technica
Story timeline
Reports grouped into this story, earliest first. Exact repeats from the same outlet are collapsed.
- First reported by Ars Technica
Anthropic VS code extension on Cursor backdoored for nearly 12 hours
Reported by 1 outlet
- Ars Technica