Washington, Feb. 14 -- Microsoft said on Wednesday that hacker groups allegedly linked to Russia, China, Iran and North Korea are exploiting its OpenAI tools to enhance their cyberoperations.

All four countries deny involvement in cyber attacks.

"In collaboration with OpenAI, we are sharing threat intelligence showing detected state-affiliated adversaries-tracked as Forest Blizzard, Emerald Sleet, Crimson Sandstorm, Charcoal Typhoon, and Salmon Typhoon- using LLMs [large language models] to augment cyberoperations," Microsoft said in a report.

The company alleged that Forest Blizzard is a "highly effective Russian military intelligence actor" linked to the Main Directorate of the General Staff of the Armed Forces.

"Its activities span a...