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The extension marketplace of the Cursor code editor suffered a supply chain breach following the publication of fake versions of Anthropic's Claude Code extension, aiming to plant backdoor tunnels and harvest developer data.
An anonymous security researcher using the name Nightmare Eclipse disclosed a zero-day exploit called FalconFlank, claiming that it elevates privileges on updated Windows versions by exploiting CrowdStrike Falcon’s feature for removing suspicious macros. CrowdStrike is investigating the claim and has temporarily advised customers to disable a specific setting while keeping another protection enabled.