Cybersecurity firm Check Point Research discovered that DeepSeek generated a near-functional browser-based ransomware sample called "InfernoGrabber 9000," which exploits the Chrome File System Access API to encrypt local files without requiring any native software installation. Although the original sample was incomplete, researchers found that only minimal technical expertise was needed to make it fully operational, and they successfully built a working proof-of-concept using DeepSeek's latest model with slightly rephrased prompts. Check Point warns that this type of AI-assisted, browser-native attack is likely already being attempted by real threat actors, lowering the bar for cybercriminals significantly.
