Messaging app Signal is at the centre of questions about security and the operation of government after a journalist said he had been added to a group chat in which secret and official US plans were ...

Several days after top national security officials accidentally included a reporter in a Signal chat about bombing Houthi sites in Yemen, a Pentagon-wide advisory warned against using the messaging ...

Highly sensitive attack plans on Iranian-backed militants in Yemen were seemingly accidentally shared with a journalist as they were happening when top Trump administration officials included Jeffrey ...

Secretary of Defense Pete Hegseth inadvertently shared information about a planned strike in Yemen in a group chat which included top Trump officials as well as a journalist. The group chat included ...

A popular messaging app called Signal was recently the preferred communications platform for top officials in the Trump administration to discuss secret war plans. But the use of the app, widely ...

A screengrab of a page from a Pentagon-wide memo warning against using the messaging app Signal. Several days after top national security officials accidentally included a reporter in a Signal chat ...