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Hacker exploits TeleMessage vulnerability – cybersecurity in the spotlight

Image of a person typing on a mobile phone.
Photo: Francis Dean/Corbis via Getty Images

A vulnerability in TeleMessage was reportedly exploited to extract archived messages and other data relating to US government officials and companies.

TeleMessage, a company providing a messaging and archiving app called TM SGNL – used by now-ousted national security adviser Michael Waltz to archive his group chats – has suspended all services after hackers claimed to have stolen files from it.

The app uses encryption technology similar to that of the popular messaging

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