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NEW Russian state-sponsored APT CRITICAL C3

Anthropic Says Russian Hackers Used Claude AI to Automate Malware Evasion

C SecurityWeek ·

Admiralty grading (A–F · 1–6)

Source reliability

  • A Completely reliable
  • B Usually reliable
  • C Fairly reliable
  • D Not usually reliable
  • E Unreliable
  • F Cannot be judged

Information credibility

  • 1 Confirmed
  • 2 Probably true
  • 3 Possibly true
  • 4 Doubtful
  • 5 Improbable
  • 6 Cannot be judged

NATO Admiralty (AJP-2.1) grades confidence, independent of the risk score. Cross-source corroboration isn't tracked for non-CVE news, so single-source items are capped at a lower credibility number; a low number does not imply low quality.

Key insight

Russian state-sponsored hacker groups directly targeted AI vendor infrastructure and leveraged Claude to automate malware evasion techniques, signaling a new attack model against cloud service providers and their customers.

Description

Anthropic reported an active attack case where Russian hacker groups compromised Anthropic's infrastructure to access pre-release Claude versions and weaponize them for automating malware evasion techniques. The attack demonstrates a targeted strategy against AI vendors themselves, not just their customers. This opens a new attack vector where nation-state actors can directly leverage proprietary models and their capabilities against defense mechanisms. The incident shows that AI service providers, as critical supply-chain nodes for European organizations, are vulnerable to targeted compromises.

Risk score

75
strategic relevance
0.75

Path: strategic

ESC