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AI company Anthropic reported that Russian hackers linked to the group Midnight Blizzard used its Claude AI system in a cyber-espionage campaign targeting Ukrainian government, military and diplomatic organisations. The report highlights growing concerns about the use of commercial AI tools to facilitate state-sponsored hacking operations tied to the war. Anthropic did not detail the specific outcomes of the intrusions but said it has taken steps to curb the misuse of its platform, underscoring broader worries about AI-enabled cyber threats in the conflict between Russia and Ukraine.