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The Register
It turns out no one was clean on OPSEC On Saturday at DEF CON, security boffin Micah Lee explained just how he hacked into TeleMessage, the supposedly secure messaging app used by White House officials, which in turn led to a massive database dump of their communications.… DEF CON
Bleeping Computer
Researchers are seeing exploitation attempts for the CVE-2025-48927 vulnerability in the TeleMessage SGNL app, which allows retrieving usernames, passwords, and other sensitive data. [...]
The Register
PLUS: Interpol kills more malware; GoDaddy settles in awful infosec case; Giant stolen creds DB exposed Secrets of the Trump administration may have been exposed after a successful attack on messaging service TeleMessage, which has been used by some officials.… Infosec In Brief
Dark Reading
Though the app claims to use end-to-end encryption, hackers have reportedly accessed archived data on the app's servers via a new vulnerability.
Graham Cluley
TeleMessage, an encrypted messaging app based upon Signal, has been temporarily suspended out of "an abundance of caution" after a hacker reportedly gained access to US government communications. Read more in my article on the Hot for Security blog.
The Register
Two flaws in TeleMessage are 'frequent attack vectors for malicious cyber actors' The US security watchdog CISA has warned that malicious actors are actively exploiting two flaws in the Signal clone TeleMessage TM SGNL, and has directed federal agencies to patch the flaws or discontinue use of the app by July 22.…
The Register
No, really? That's a shocking surprise An unidentified miscreant is said to have obtained US government communications from TeleMessage, a messaging and archiving app based on the open-source Signal app and used by ousted national security advisor Michael Waltz.…
Bleeping Computer
TeleMessage, an Israeli company that sells an unofficial Signal message archiving tool used by some U.S. government officials, has suspended all services after reportedly being hacked. [...]