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.

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Dutch intelligence agencies have warned that Russia-linked hackers breached Signal and WhatsApp accounts belonging to government officials and journalists. The alert, directed at Western governments ...

The FBI’s Internet Crime Complaint Center issued a public service announcement on December 19 warning that scammers are impersonating senior U.S. officials in a malicious messaging campaign that ...

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 ...

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 ...