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

Smarsh, the Oregon-based owner of TeleMessage, said Monday it was “investigating a potential security incident” and suspended ...

The messaging app that President Donald Trump's former NSA was seen using is temporarily suspending services following ...

In his recent case for why Donald Trump recaptures a cool factor not seen since (yes) Bill Clinton, a comedian inadvertently ...

Sen. Tammy Duckworth (D-Ill.) said former national security adviser Mike Waltz will face a “brutal, brutal” confirmation ...

The Washington Post reported that Donald Trump soured on Waltz over Waltz's support for an Israeli attack on Iran.

Marco Rubio serving as both Secretary of State and national security adviser could be "ultimately disadvantageous" to President Trump, says former adviser John Bolton.

A clone of the messaging app Signal, which was used by since-ousted national security advisor Mike Waltz, has been hacked.

The comments came in a wide-ranging and at time combative interview with Kristen Walker that aired Sunday on NBC’s “Meet the ...

President Donald Trump said Sunday that he plans to appoint a new national security advisor in about six months, telling ...