The messaging app Signal is making headlines again, with the news that U.S. Defense Secretary Pete Hegseth used it for a chat with his wife, his personal lawyer and others in which he shared sensitive military information. In late March, Hegseth and other ...

As national security services warn that Russian hackers are currently engaged in new global attacks against WhatsApp and Signal users, here’s how to stay safe.

The drama this week over the Trump administration Signal group chat about a strike on Houthis in Yemen in which The Atlantic Editor in Chief Jeffrey Goldberg was inadvertently included has been popcorn-worthy, if you're into that sort of thing. But beyond ...

The chat app, which is run by a nonprofit foundation, has been downloaded 220 million times. Here's what to know about Signal, including who owns it and whether it's safe to use. Until Monday, many people had likely never heard of the messaging app Signal ...

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 private, secure communications." On Monday, The Atlantic ...