Russian hackers crack into officials’ Signal and WhatsApp accounts

Dutch intelligence agencies warn of a Russian state-linked phishing campaign targeting Signal and WhatsApp accounts used by diplomats, military personnel, government officials and journalists worldwide. Attackers use social-engineering tactics—posing as a Signal support chatbot and abusing the apps' linked-devices feature to trick victims into sharing verification codes and PINs—enabling account takeover and access to private conversations; agencies emphasize apps themselves are not compromised and have issued a cybersecurity advisory.