Russian hackers now steal Signal backup keys to read past messages
A phishing campaign linked to Russian intelligence has evolved to steal Signal Backup Recovery Keys, giving attackers access to victims' full historical message archives.
A phishing campaign tied to Russian intelligence has evolved to steal Signal Backup Recovery Keys, which give attackers access to a victim's complete archive of past messages. The FBI and CISA issued a joint warning, noting the campaign has grown more sophisticated.
Access to these keys is particularly damaging as it exposes a victim's entire historical message archive.
Why it mattersAnyone using Signal for private communications should treat their Backup Recovery Key as sensitive; its theft effectively hands an attacker their entire past conversation history.
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