Russian phishing campaign targets commercial messaging apps, specifically Signal, to steal recovery keys, access historical messages, private and group chats, and take over accounts.
TeleMessage provides secure archiving services for a variety of messaging apps, including Telegram and WhatsApp. In this case, the security breach is of an unofficial Signal clone that parent company Smarsh offers called "TM SGNL."
The largest messaging app in Japan, Line, has suffered a data breach leaking the personal information of its users, customers, and business partners. Data breach leaked 440,000 items of personal data.
