A threat actor published a malicious Claude Code extension to the Cursor marketplace in a new supply chain attack.

A malicious Claude Code extension on Cursor exposed up to 5,000 developers to SSH backdoors. Here's what happened and what ...

The compromised versions attempted to plant SSH keys and establish persistent remote access; Anthropic says an attacker used ...

npm 12 now blocks install scripts by default, closing the lifecycle hook that fueled major supply chain attacks on developer ...

IntroductionWhen using Claude Code, you may find yourself in situations where you want to 'display the number of times Claude ...

Cursor is warning developers who installed a Claude Code extension from its own marketplace during an October 29 attack ...

DebugBear, a Real User Monitoring tool widely used by SEO experts, reported an attack. Site owners must remove its script and ...

Microsoft has warned that a trojanized Claude Code extension distributed through Cursor’s marketplace attempted to install a ...

Microsoft analyzes a malicious Claude Code–branded extension, its persistent SSH backdoor, and guidance to detect and ...

A trojanized build of Anthropic's official Claude Code VS Code extension sat in Cursor's marketplace for most of October 29, exposing up to ...

A malicious version of Anthropic's Claude Code VS Code extension was distributed through Cursor's extension marketplace for ...