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Anthropic warns infostealer malware is hijacking Claude sessions to drain usage

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Anthropic warns infostealer malware is hijacking Claude sessions to drain usage

Anthropic warned that infostealer malware running on affected users' computers has stolen active Claude login sessions, allowing attackers to hijack accounts and consume application programming interface (API) usage quotas. The threat affects anyone running vulnerable malware-infected systems with authenticated Claude sessions.

Why it matters: Users of Claude with infostealer malware on their machines face account compromise and unexpected usage charges; practitioners should audit access logs, revoke sessions, and scan endpoints for malware.

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Correction

Correction recorded as of .

threat intel

Anthropic warns infostealer malware is hijacking Claude sessions to drain usage

Anthropic warned that infostealer malware running on affected users' computers has stolen active Claude login sessions, allowing attackers to hijack accounts and consume application programming interface (API) usage quotas. The threat affects anyone running vulnerable malware-infected systems with authenticated Claude sessions.

Why it matters: Users of Claude with infostealer malware on their machines face account compromise and unexpected usage charges; practitioners should audit access logs, revoke sessions, and scan endpoints for malware.

Source published
First seen by Cybersecurity Tracker

Source attribution

Correction

Correction recorded as of .

threat intel

Anthropic warns infostealer malware is hijacking Claude sessions to drain usage

Anthropic warned that infostealer malware running on affected users' computers has stolen active Claude login sessions, allowing attackers to hijack accounts and consume application programming interface (API) usage quotas. The threat affects anyone running vulnerable malware-infected systems with authenticated Claude sessions.

Why it matters: Users of Claude with infostealer malware on their machines face account compromise and unexpected usage charges; practitioners should audit access logs, revoke sessions, and scan endpoints for malware.

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Source published
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