Researchers at WithSecure say a previously undocumented threat group, tracked as "GREYVIBE," has been using OpenAI's ChatGPT, Google's Gemini, and Ideogram AI across almost every stage of its operations targeting Ukraine. The campaign has hit military, government, civilian, and business organizations since at least August 2025.
GREYVIBE has been attributed to ongoing and persistent attacks targeting Ukraine and Ukraine-related entities since at least August 2025. GREYVIBE, per WithSecure, is assessed to be a Russian-speaking group operating broadly in the Russian time zone, with the activities aligning with Kremlin state interests, specifically when it comes to intelligence gathering efforts aimed at Ukraine in the context of the ongoing Russo-Ukrainian war.
When the hostname is 15 characters long, DCLocator calls (for example, using nltest /dsgetdc:<domain> /pdc) will return ERROR_INVALID_PARAMETER, preventing applications and administrative tools from locating a domain controller.
Valentina Palmiotti, better known as Chompie, was the most successful individual at the annual Pwn2Own hacking competition in Berlin. She told BBC News that, for now, AI tools were helping her to win “bug bounties” - money given to hackers who spot vulnerabilities in online systems before they can be exploited by cyber-criminals. But she said systems like Mythos were so powerful that even champion hackers like her would soon struggle to compete with them.