Here's what to know about the messaging app used by Trump Administration officials to discuss military strikes on Yemen.

Government watchdogs say it’s a slippery slope for the mayor to continue using the controversial encrypted messaging app.

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.

Portugal warns foreign state-backed hackers are targeting WhatsApp and Signal accounts used by officials, diplomats, and military staff in a global espionage campaign.

After messages from Mike Waltz's leaked chat on the Signal app went massively public months ago, he was ousted as President Donald Trump's top national security adviser. Now, he's up for a new ...

This is read by an automated voice. Please report any issues or inconsistencies here. Defense Secretary Pete Hegseth shared exact timings of warplane launches and bomb drops on the encrypted Signal ...

Two new spyware campaigns that researchers call ProSpy and ToSpy lured Android users with fake upgrades or plugins for the Signal and ToTok messaging apps to steal sensitive data. To give the ...

Former national security adviser Mike Waltz, testified before the Senate Foreign Relations Committee in his bid to become U.N. ambassador, stood by the use of Signal in a chat that discussed sensitive ...

The Nevada DMV communicated with ICE over Signal for its work on a federal task force that it says does not relate to ...