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Czech Agency Warns of Russia-Linked Hacking Push on Signal Users
(MENAFN) The Czech Republic's cybersecurity watchdog has flagged an ongoing campaign, largely tied to Russia, to hijack accounts on the encrypted app Signal, local media reported Friday.
The National Cyber and Information Security Agency said the attacks primarily target politicians, government officials and security experts — though any user could be caught up — according to Radio Prague International.
Rather than breaking Signal's encryption directly, attackers rely on social engineering to trick victims into linking an unfamiliar device to their account or handing over their personal identification number. Tactics include fake messages posing as Signal support, malicious links and counterfeit QR codes disguised as group invitations — all designed to get a rogue device linked to the target's account without ever cracking the app's encryption itself.
The agency urged users to treat unsolicited messages, links and QR codes with suspicion and to verify any request before linking a new device.
The warning echoes similar alerts issued earlier this year in the Netherlands, Germany, Ukraine and elsewhere in Europe. In March, the Netherlands' AIVD and MIVD intelligence agencies warned of a sweeping global campaign by Russian state actors targeting government workers, military personnel, civil servants and journalists. In April, German authorities issued a similar warning covering senior politicians, lawmakers, diplomats, military officers and journalists — later attributing the campaign to Russia and opening an espionage probe.
The National Cyber and Information Security Agency said the attacks primarily target politicians, government officials and security experts — though any user could be caught up — according to Radio Prague International.
Rather than breaking Signal's encryption directly, attackers rely on social engineering to trick victims into linking an unfamiliar device to their account or handing over their personal identification number. Tactics include fake messages posing as Signal support, malicious links and counterfeit QR codes disguised as group invitations — all designed to get a rogue device linked to the target's account without ever cracking the app's encryption itself.
The agency urged users to treat unsolicited messages, links and QR codes with suspicion and to verify any request before linking a new device.
The warning echoes similar alerts issued earlier this year in the Netherlands, Germany, Ukraine and elsewhere in Europe. In March, the Netherlands' AIVD and MIVD intelligence agencies warned of a sweeping global campaign by Russian state actors targeting government workers, military personnel, civil servants and journalists. In April, German authorities issued a similar warning covering senior politicians, lawmakers, diplomats, military officers and journalists — later attributing the campaign to Russia and opening an espionage probe.
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