AI-Generated Browser Ransomware Abuses Chromium API on Windows and Android

Researchers discovered a new ransomware tool called InfernoGrabber v9.0, created using the DeepSeek AI model, that exploits a legitimate browser feature (the File System Access API in Chrome and Chromium-based browsers) to encrypt files and demand ransom payments entirely within the browser on Windows and Android devices. This marks the first time an AI model has independently created a practical ransomware attack that bypasses browser sandboxing (the security feature that isolates browser processes), and it demonstrates that threat actors no longer need deep expertise to discover new attack methods.