Microsoft said Wednesday that U.S. adversaries — chiefly Iran and North Korea and to a lesser extent Russia and China — are beginning to use its generative artificial intelligence to mount or organize offensive cyber operations.

The technology giant and business partner OpenAI said they had jointly detected and disrupted the malicious cyber actors’ use of their AI technologies — shutting down their accounts.

In a blog post, Microsoft said the techniques employed were “early-stage” and neither “particularly novel or unique” but it was important to expose them publicly as U.S. adversaries leverage large-language models to expand their ability to breach networks and conduct influence operations.