Add Yahoo as a preferred source to see more of our stories on Google. Signal, the most secure widely available messaging app, has become a go-to resource for journalists, leakers and other people ...

Signal messages are secure and encrypted, but that doesn't mean no one will ever see them. Here's how to make sure your ...

Serious national security concerns have been brought to the forefront this week — and they’re linked to a secure messaging app called Signal. White House staffers have come under fire after allegedly ...

As reports continue to come out about President Donald Trump's administration’s use of Signal, the company issued a statement Tuesday to clear the air, saying its software is "the gold standard for ...

LONDON, UK — A magazine journalist's account of being added to a group chat of U.S. national security officials coordinating plans for airstrikes has raised questions about how highly sensitive ...

Elon Musk announced the beta launch of XChat. The new messenger incorporates "Bitcoin-style" encryption, Musk said. However, security experts aren't convinced by Musk's vague and potentially ...