AnalysisCybersecuritySeptember 11, 2026

Anthropic: Russian Hackers Used Claude to Automate Malware Evasion

Read original source →securityweek.com

Anthropic disrupted a Midnight Blizzard cyberespionage operation active December 2025 to August 2026 in which Claude monitored malware detection and AI agents auto-rebuilt flagged tools until they went undetected again. The actor hit 20+ organizations, exfiltrating mailboxes from two drone component makers and a drone vision SDK.

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Anthropic: Russian Hackers Used Claude to Automate Malware Evasion