Browser-Only Ransomware: From LLM Hallucinations to a Practical Attack Technique

Reported 01 Jul 2026 by otx · Severity: medium

Check Point Research discovered a novel browser-native ransomware technique that emerged from AI-generated code attributed to DeepSeek. The attack leverages the File System Access API in Chromium browsers to encrypt files without requiring native payloads, exploits, or app instal