The Trump administration's IT team members investigated how Atlantic editor-in-chief Jeff Goldberg was added to a Signal ...

The national security adviser's use of the messaging app is under scrutiny after he mistakenly added a journalist to a sensitive chat.

Trump and his administration have repeatedly defended the national security leader amid criticisms over the chat leak. Signal ...

Make Iran dismantle its nuclear and missile programs. Then its top negotiator started softening his tone, and had to retreat.

Democrats on the Senate Homeland Security Committee say the reported use of Signal and Gmail by national security officials creates major cybersecurity risks.

Why was the national security adviser doing the tedious administrative work of setting up a chat group that should have been ...

CEO Nicholas Thompson on the editorial independence that shaped the magazine’s blockbuster story—and the business risks of ...

QRF receivers are poised to transform fields, including electronic warfare, signals intelligence and next-generation ...

The Trump administration has fired Timothy Haugh, the head of the National Security Agency (NSA) and Cyber Command, several ...

Cultivating and rewarding expertise and integrity inside the White House are out, while passing loyalty tests and expending ...

President Trump reportedly fired several White House national security aides on Thursday after right-wing provocateur Laura ...

The move comes soon after far-right activist Laura Loomer urged Trump to purge staffers she deemed insufficiently committed ...