The national security adviser's use of the messaging app is under scrutiny after he mistakenly added a journalist to a ...

Current and former US officials have told CNN they believe two texts sent by national security adviser Mike Waltz and CIA ...

A federal judge has ordered the Trump administration to preserve records of a text message chat in which senior national ...

Oklahoma Senator James Lankford is the latest senior Republican to endorse an independent probe into how President Donald ...

Top government officials used Signal to discuss air strikes on Houthi targets in Yemen as the Trump administration stepped up ...

See the newly published key exchanges between senior Trump administration officials, as reported by The Atlantic.

The National Security Agency sent a bulletin in February warning of Russian hackers trying to access encrypted conversations ...

Atlantic editor-in-chief Jeffrey Goldberg said it was not true that he and Mike Waltz had never spoken before during an ...

Sue Gordon, former principal deputy national intelligence director, said the Trump administration needs to deal with any ...

Some think Vance tried to block an order from Trump. Others feel he is on the wrong side of a rift between MAGA and GOP ...

U.S. officials seek to curb the militants’ attacks on ships in the Red Sea, but the group was not deterred by strikes in the ...

The messaging app was created by a one-time anarchist to help activists, journalists, and others communicate beyond the ...