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Russian Hackers Hijack Signal Accounts with Malicious QR Codes: A Comedic Tragedy in Cyber Espionage
Russia-linked threat actors exploit Signal’s “linked devices” feature to hijack accounts with malicious QR codes. These cunning cyber villains are turning casual chat into a spy thriller, as they sneak their way into your conversations. It’s a reminder that even in the world of espionage, it’s important to mind the QR code!

Hot Take:
Looks like the Russians are taking a page from Bond villains, using QR codes to infiltrate Signal like it’s the latest spy gadget! It seems the Cold War has gone digital, and QR codes are the new microfilm. Who knew scanning those little squares could lead to international espionage?
Key Points:
- Russia-linked hackers exploit Signal’s “linked devices” feature with malicious QR codes.
- Phishing attacks disguise QR codes as legitimate Signal resources or military apps.
- APT44 (Sandworm) and UNC5792 are among the groups linked to these attacks.
- UNC4221 uses phishing kits mimicking the Kropyva artillery guidance app.
- The threat extends beyond Signal, affecting other messaging platforms like WhatsApp and Telegram.