If you hadn’t heard of Signal before Monday, chances are you have now. The secure messaging app, available for iPhones and Android devices, has long been popular with journalists because of its robust ...

Moxie Marlinspike, the cryptographic prodigy who wrote the code that underpins Signal and WhatsApp, has a new project—and it ...

The Pentagon watchdog’s internal review of the Department of Defense’s use of a private messaging app to discuss military operations is complete and has been released to Congress. Acting Inspector ...

A monthslong investigation into Defense Secretary Pete Hegseth's use of the commercial messaging app Signal is complete and its classified findings provided to Capitol Hill, according to a person ...

A Pentagon watchdog report has found that Defense Secretary Pete Hegseth put U.S. service members at risk when he used the Signal messaging app to discuss a military strike in Yemen earlier this year.