A hacker has exploited a vulnerability in TeleMessage, which supplies modded variations of encrypted messaging apps akin to Sign, Telegram and WhatsApp, to extract archived messages and different information referring to U.S. authorities officers and firms who used the device, 404 Media reported.

TeleMessage got here into the highlight last week after it was reported that former U.S. Nationwide Safety Adviser Mike Waltz was utilizing TeleMessage’s modified model of Sign. Israel-based TeleMessage, owned by Smarsh, presents its shoppers a option to archive messages, together with voice notes, from encrypted apps.

The messages of cupboard members and Waltz weren’t compromised, 404 Media stated, however the hacked information contained contents of messages; contact data of presidency officers; backend login credentials for TeleMessage, and extra. Information pertaining to the U.S. Customs and Border Safety, crypto trade Coinbase, and monetary service suppliers like Scotiabank have been extracted by the hacker, the report stated.

The hack revealed that the archived chat logs usually are not end-to-end encrypted between the modded model of Sign that TeleMessage presents and the final word location the place it shops the messages, 404 Media reported.

Smarsh, Sign, U.S. Customs and Border Safety, Coinbase, and Scotiabank didn’t instantly return requests for remark.