AI Agents Are Powering a New Generation of Cyberattacks, Anthropic Warns

Anthropic disclosed on Wednesday that it disrupted multiple hacking operations between December 2025 and August 2026 in which threat actors used its Claude models as active operators in cyberattacks rather than as simple coding assistants. The disclosure marks one of the clearest documented cases of AI systems independently executing technical stages of an attack, according to Anthropic.