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US Targets Russian-Linked UNC5792, UNC4221 Hackers of Messaging Apps
US State Dept. offers $10M for info on Russian-linked UNC5792 & UNC4221 groups targeting WhatsApp, Signal users. Learn about nation-state threats.
FBI Warns: Russian Hackers Target Signal Backup Keys
The FBI and CISA alert on an evolved phishing campaign by Russian intelligence targeting Signal backup recovery keys, enabling access to historical messages. Defenders
FBI Warns: Russian APTs Target Signal Backup Keys via Phishing
FBI and CISA warn of Russian intelligence targeting Signal users. Attackers phish for backup recovery keys, enabling full account takeover and message history access.
CVE-2026-28950: Apple Fixes iOS Notification Data Retention Flaw
Apple patches CVE-2026-28950 in iOS and iPadOS, a logging issue that allowed deleted notifications to persist on devices, impacting forensic privacy.
Russian Intelligence Phishing Targets Signal and WhatsApp Accounts
FBI and CISA warn that Russian state-sponsored actors are using sophisticated phishing to compromise high-value Signal and WhatsApp accounts.
Russian Intelligence Phishing Targets Signal and WhatsApp Users
The FBI warns of sophisticated phishing campaigns by Russian intelligence targeting Signal and WhatsApp users to harvest credentials and bypass encryption.