A sophisticated threat cluster, GreyVibe, has been leveraging AI-powered tools, including ChatGPT and Gemini, to launch targeted cyberattacks against Ukrainian entities1. These attacks involve the use of custom malware tools and AI-generated lures, designed to deceive and manipulate victims. The threat cluster's use of AI-generated content suggests a high degree of sophistication and adaptability, allowing them to evade detection and stay one step ahead of security measures. The fact that GreyVibe is utilizing Russian-developed language models to power their attacks raises concerns about the potential for other threat actors to exploit similar technologies. As a result, security practitioners must be aware of the emerging threat landscape and take steps to mitigate the risks associated with AI-powered attacks, particularly those leveraging language models like ChatGPT and Gemini, so what matters most is the need for security teams to reassess their defenses against AI-driven threats.