<ul><li>The National Security Agency (NSA) issued a warning to its staff about the potential vulnerabilities in the encrypted messaging app Signal.</li><li>The warning comes after a recent incident in which a White House group chat was accidentally joined by a non-official.</li><li>Russian hacking groups were identified as possible threats, using malicious QR codes or group invite links to gain access to encrypted conversations in real time.</li><li>The NSA bulletin reminded employees not to use third-party messaging apps like Signal for sensitive discussions and to rely on sanctioned government communication channels instead.</li></ul>

NSA warned about vulnerabilities in Signal prior to White House group chat fiasco

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