SecurityBleepingComputerabout 3 hours ago
FBI: Russian hackers now target Signal backup recovery keys
1 min read
The FBI and CISA updated their warning about Russian intelligence phishing campaigns targeting Signal users. Attackers now steal Backup Recovery Keys to access historical messages and take over accounts. The advisory names threat groups UNC5792 and UNC4221, tied to multiple Russian Intelligence Services including FSB officers.
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