China's spy chief identified Anthropic’s Claude Mythos and OpenAI’s GPT-5.5-Cyber as signs of what he called a “disruptive upgrade” in cyber capabilities, increasing the speed and potential weaponization of vulnerability discovery and malware development.
Anthropic says multiple threat groups, including the financially motivated and state-sponsored espionage groups linked to Russia and China, tried to abuse its Claude AI model for malicious purposes. [...]
Anthropic US
Anthropic detected and disrupted a Russia-linked cyber-espionage group that used its AI tool Claude in a hacking campaign targeting more than 20 government, intelligence, diplomatic and defense organizations.