A hacker stole customer data from TeleMessage, an Israeli firm selling modified versions of popular messaging apps, such as Signal and WhatsApp, to the U.S. government.
“The data stolen by the hacker contains the contents of some direct messages and group chats sent using its Signal clone, as well as modified versions of WhatsApp, Telegram, and WeChat.” reported 404media. “TeleMessage was recently the center of a wave of media coverage after Mike Waltz accidentally revealed he used the tool in a cabinet meeting with President Trump.”
The security breach highlights the risks of relying on modified versions of popular apps, especially when chats aren’t end-to-end encrypted between the apps and the archive. 404 Media noted that although the app was used by top U.S. officials, cabinet-level messages were not compromised. However, data belonging to Customs and Border Protection (CBP), Coinbase, and other financial entities was also leaked.