Trump Officials' Modified Signal App Leaked Plaintext Chat Logs

A security researcher discovered that TeleMessage, the maker of a modified Signal app (TM SGNL) used by former Trump administration officials, has access to users' plaintext chat logs. The app archived messages on a public AWS cloud server, and vulnerabilities led to a hack exposing a trove of chat logs, including Signal, Telegram, and WhatsApp messages. TeleMessage, an Israeli company whose founder is a former IDF intelligence officer, raises concerns about potential sharing of data with Israeli intelligence. This incident highlights the risks of using modified messaging apps and the potential threat to national security.