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 ...

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.

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 ...

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Another day, another security breach, but this time it's going down in the group chat. On Monday, The Atlantic's editor-in-chief, Jeffrey Goldberg, reported that he had been added to a Signal ...

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 information is ...

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 ...

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 ...

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 ...