Donald Trump is taking his time naming a permanent replacement for his National Security Adviser. But he’s already sent a clear message: the job once held by figures like Henry Kissinger and Zbigniew ...

A hacker breached TeleMessage, a government-approved messaging app used by Trump administration officials, exposing archived ...

The information was not only classified but was some of the most important and justifiably classified that the U.S.

As one of the last federal agencies to face major changes in President Trump’s norm-bending second term, the CIA is bracing ...

Trump administration officials testify to Congress and Joe Biden slams Trump on dealings with Russia over the Ukraine war.

Revelations about the defense secretary’s passwords came after he discussed details of planned U.S. airstrikes on a messaging ...

The Trump admin directed U.S. intelligence agencies to step up information gathering on Greenland, The Wall Street Journal ...

The messaging app used by some members of the Trump administration and the US government has been hacked, according to a new ...

New reports reveal that Hegseth took part in more than a dozen Signal chats and that he halted Ukraine military aid without ...

A centralized system with unprecedented access to data about Social Security, taxes, medical diagnoses and other private ...

They did, however, confirm a behavior that should give some group messaging users pause: Like other messengers billed as secure—with the notable exception of Signal—WhatsApp doesn’t provide any sort ...

TeleMessage's modified Signal app, TM SGNL, used by Trump officials, has been found to allow plaintext chat access, leading ...