US offers $10 million for info on group behind Signal and WhatsApp hacking spree
Summary
Ars Technica reports that US authorities offer up to $10 million for information identifying two Russian-state cyber groups linked to hacking thousands of Signal and WhatsApp accounts. The article details phishing campaigns, account takeovers through manipulated backup keys, and advisories naming UNC5792 and UNC4221, underscoring ongoing threats to high-value targets.