President Trump's national security adviser has denied knowing the editor of The Atlantic after accidentally adding him to a ...

An inadvertent invitation to a group chat thrust The Atlantic's editor-in-chief Jeffrey Goldberg into the center of an ...

Regardless of app security, experts say communicating the military plans of the U.S. government in a non-classified space ...

There has been widespread condemnation of the Donald Trump administration after it emerged a journalist was accidentally added to a Signal group chat in which top-secret military war plans were being ...