U.S. intelligence agencies intercepted an encrypted Iranian signal that federal officials believe could be linked to the activation of dormant operatives inside the United States, according to threat ...

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.

U.S. intelligence officials are warning law enforcement agencies to stay alert after intercepting encrypted communications believed to be linked to Iran and possibly connected to covert operatives ...

The messaging app Signal made news in March after a handful of White House officials, including Vice President JD Vance, used the app to communicate with each other (and, inadvertently, a journalist) ...

Almost immediately after news broke that US government officials had inadvertently shared war plans with a journalist last week, misinformation began to fly. Much of it had to do with the inner ...