UNC5792
Russian Cyber Warfare Targets Encrypted Messaging: The Signal QR Code Exploit Crisis The Rise of a New Attack Vector
Encrypted messaging apps like Signal have become critical tools for journalists, activists, military personnel, and privacy-conscious users worldwide. However, Google's Threat Intelligence Group has revealed that Russian-aligned hacking collectives UNC5792 and UNC4221 have weaponized Signal's device-linking feature, turning its core privacy functionality into an espionage vulnerability.