Why was the national security adviser doing the tedious administrative work of setting up a chat group that should have been left to his special assistant? Why was Mr. Waltz using Signal rather than ...

But, alas, the chat is real, which Goldberg discovered after the chat decided on U.S. airstrikes on Houthi targets in Yemen, ...

A special bulletin from the National Security Agency said Russian hackers were able to spy on the encrypted messaging app ...

The National Security Agency sent out an operational ... of vulnerabilities in using the encrypted messaging application Signal, according to internal NSA documents obtained by CBS News.

The White House is starting to rebuild the National Security Council with aides top officials believe are staunchly aligned ...

The Trump administration's IT team members investigated how Atlantic editor-in-chief Jeff Goldberg was added to a Signal ...

National security adviser Mike Waltz’s team regularly set up chats on Signal to coordinate official work on issues including Ukraine, China, Gaza, Middle East policy, Africa and Europe ...

Former national security officials reacted with shock and horror to revelations in The Atlantic that top members of President Donald Trump’s Cabinet sent detailed operational plans and other likely ...

The Trump administration is in damage-control mode after Jeffrey Goldberg, editor of the Atlantic, revealed that he was added to a Signal messenger ... with how U.S. national-security officials ...

President Donald Trump's second administration has not been lacking in scandal. One of the largest incidents recently ...

“It was a mistake that a reporter was inadvertently added to a Signal chat with high-level national security principles, having a policy discussion about imminent strikes against the Houthis and ...

National security advisor Michael Waltz commented on the Signal text chain leak during an appearance on "The Ingraham Angle." ...