Anthropic signs out some Claude users, removes saved payment methods, and issues refunds after infostealer malware on their PCs hijacked sessions to drain usage (Mayank Parmar/BleepingComputer)

Anthropic has taken action to protect its users after discovering that infostealer malware on some users' PCs had hijacked their Claude sessions, allowing the malware to drain usage. The company has signed out some affected users, removed their saved payment methods, and issued refunds.

This incident involved malware stealing active login sessions from users' PCs. Anthropic has taken steps to mitigate the issue, ensuring that affected users' accounts are secure.

There is no further information available on the number of users affected or the extent of the usage drained.

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