A dozen current and former officials confirmed that the encrypted messaging app is used across various agencies — despite ...

Among the many messages revealed in the Trump administration’s Signal group chat about a military strike on Yemen were a few ...

The claims spread after members of President Donald Trump's White House accidentally added The Atlantic's editor-in-chief to ...

A messaging app called Signal based in San Francisco was used by the Trump administration to discuss war plans.

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

The claim spread after The Atlantic reported that Trump officials accidentally added the publication's editor-in-chief to a ...

The White House doubled down Wednesday on its insistence that its top national security officials did nothing wrong when they ...

A lawsuit alleged that a Signal chat used by senior White House offiicals to discuss a US strike in Yemen violated federal ...

Watchdog group American Oversight sued Trump officials after the shocking national security failure exposed by The Atlantic.

Former members of the defense and intelligence communities wonder who’s in charge of policy and operations — and if they’re ...

A federal judge in Washington ordered Trump administration officials Thursday to temporarily preserve records of a leaked ...

Republican committee chair Sen. Roger Wicker and top Democrat Sen. Jack Reed signed onto a letter to the acting inspector ...