Signal clone used by Trump official stops operations after report it was hacked

The former NSAD Mike Waltz used a modified messaging app from TeleMessage during a White House meeting, prompting its temporary shutdown as an investigation into a security breach continues. TeleMessage, acquired by Smarsh in 2024, has suspended all services following the incident, while Smarsh is collaborating with cybersecurity experts to address the issue. --- This summary captures the essence of the article, highlighting the controversy around Waltz's use of the app and the company's response to the hack.