The Cursor extension used by Anthropic was compromised and delivered a remote access trojan to developers' devices.

Cybersecurity TechnologyOct 30, 2026score 1.442 posts · 6 replies across 2 instances

The thread discusses a security breach at Anthropic where a remote access trojan was delivered through a compromised Cursor extension, affecting developers' devices. It highlights concerns about the lack of transparency and the failure of Claude to detect the hack.

Claims

Parent: CybersecurityEntity: AnthropicSub-entity: Cursor extensionImpact: negativeDate: Oct 30, 2026Target: The security of Anthropic's Cursor extension

Claude failed to detect the hack that compromised the Cursor extension.

Parent: CybersecurityEntity: ClaudeImpact: negativeDate: Oct 30, 2026Target: The effectiveness of Claude's security measures

Source posts

@[email protected]

Yesterday, Anthropic were compromised and Cursor extension used by tens of millions of developers for Claude access was delivering a remote access trojan via an SSH reverse backdoor. The malware allowed hands on and automated remote access to developer laptops and desktops, in a supply chain attack. Anthropic has not informed customers, and the malicious version was silently deleted the backdoored version without telling anybody https://doublepulsar.com/anthropic-hacked-to-deliver-remote-access-trojan-to-claude-developer-laptops-worldwide-1148a92baae2  Why didn't Claude detect the hack ? LOL

132 boosts · 69 favs · 11 replies · Oct 30, 2026

@[email protected]

Anthropic hacked to deliver remote access trojan
https://doublepulsar.com/anthropic-hacked-to-deliver-remote-access-trojan-to-claude-developer-laptops-worldwide-1148a92baae2

https://news.ycombinator.com/item?id=50301983

0 boosts · 0 favs · 0 replies · Oct 30, 2026

@[email protected]

Anthropic hacked to deliver remote access trojan | Hacker News
https://news.ycombinator.com/item?id=50301983

0 boosts · 0 favs · 0 replies · Oct 30, 2026