Republican senators are warning that any conversation taking place between senior Trump administration officials over the ...

OPSEC, or operational security, is a military priority. Accidentally sharing combat action plans over an unsecured app is ...

Director of National Intelligence Tulsi Gabbard and CIA Director John Ratcliffe returned to Capitol Hill to testify before ...

The news of the leak of life-and-death operational details to a reporter lands differently with veterans and active-duty ...

"Or do you trust Jeffrey Goldberg, who is a registered Democrat and an anti-Trump sensationalist reporter?" Leavitt says, ...

Sources tell PEOPLE that President Donald Trump has asked around about his next steps following the scandal in which ...

Republican and Democratic leaders on the Senate Armed Services Committee are requesting a formal investigation into the ...

What does he understand about Signal? Can we get him some training ... Sullivan, a former colonel in the Marine Corps Reserve, said operational security, or OPSEC, “is really important, and ...

The Atlantic on Wednesday published a transcript of top Trump administration officials’ group chat this month discussing an ...

As officials’ texts including sensitive information on planned airstrikes in Yemen circulated widely, Sen. Sullivan said the ...

When I joined the Marine Corps two decades ago ... In that light, the absurdity of the Signal chat takes on a more sinister cast. You don’t need to be a military expert to know that what ...

Using Signal, a popular secure messaging app that ... Last week, the US Marine Corps' top general, Gen. Eric Smith, warned Marines in a video posted to social media that sloppy cellphone OPSEC ...