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

Trump administration officials continued to defend against claims of mishandling classified information after the release of ...

A government watchdog has filed a lawsuit against Trump administration security officials over their use of a smartphone ...

T he Trump administration is facing heavy blowback for using Signal, a messaging app, to discuss sensitive military plans. On ...

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

A Biden-era Cybersecurity and Infrastructure Security Agency (CISA) best guidance document shows highly-targeted government ...

President Trump told reporters on Tuesday that he had asked national security adviser Mike Waltz, who Goldberg said added him ...

The story of how national security officials used the Signal encrypted app to discuss a planned attack on terrorists in Yemen ...

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

Signal is a free app that cybersecurity experts consider to be one of the most secure messaging services because of its ...

A magazine journalist’s account of being added to a group chat of US national security officials coordinating plans for ...

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