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Cursor data breach
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CiberSeguridad Latam reported a data breach at Cursor on 31 October 2026.
People affected Not reported no count given yet
Reported 31 October 2026 News report What was exposed 2
How it happened How Hacking Fake Claude Code extension installed SSH backdoor source Our translation from Spanish Extensión falsa de Claude Code instaló backdoor SSH Sources 1
News reports are read by an AI model; every fact taken from an article was checked word for word against it, and anything it could not find was dropped. · Corrections and changes
If Cursor had your data
Look for Cursor’s own notice or letter: it should say what of yours was involved. Keep it. Change your Cursor password, and the same password anywhere else you use it. Turn on two-step sign-in. Expect scams that use your details: calls, texts or emails pretending to be Cursor, your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.
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