FlutterShell macOS Backdoor Abuses Flutter Framework and WKWebView for Stealthy Attacks

A newly analyzed macOS backdoor called FlutterShell has been quietly targeting Mac users by disguising itself as legitimate productivity apps. It abuses Google’s Flutter app development framework to blend in with real software, making it far harder to detect using traditional security tools. The malware was active between December 2025 and March 2026, with researchers […] The post FlutterShell macOS Backdoor Abuses Flutter Framework and WKWebView for Stealthy Attacks appeared first on Cyber Security News.