The recent national security breach involving a Signal group chat has raised concerns regarding the messaging app’s security.

Many are raising questions about how highly sensitive information is being handled by national security officials. This ...

President Trump suggested Wednesday that the encrypted Signal messaging platform his top national security brass used to plan ...

Secure messaging app Signal has been in the spotlight this week for national-security reasons, but companies can also learn lessons from the Trump administration’s misstep.

Mistake.” “Glitch.” “Entirely permissible.” “Hoax.” See the varied and shifting responses President Donald Trump and his ...

Learn more about Signal, including whether the news about its use in a military intelligence breach impacts its effectiveness ...

Defenese Secretary Pete Hegseth, national security adviser Mike Waltz and more of the contacts who appeared in the Signal ...

President Trump and other top U.S. officials are continuing to downplay a military leak from a group chat on the message app ...

White House staffers have come under fire after allegedly using the app to discuss sensitive foreign policy plans.

So let me get this straight. A meeting to discuss high-level U.S. war plans was done on a private messaging APP not cleared for such high-level security discussions. Presumably, a foreign ...

The fallout continues following Jeffrey Goldberg’s report that top members of President Trump’s national security team ...

Pete Hegseth, President Trump’s secretary of defense, inadvertently included the top editor of The Atlantic in a Signal text ...