The "signal sniffer" being used in the Nancy Guthrie investigation was mounted on a helicopter on Monday.

The “ethical hacker” who created the Bluetooth “signal sniffer” being used to try and track Nancy Guthrie’s pacemaker said he created the high-tech tool specifically for the search to find the missing ...

The Pima County Sheriff’s Department said Tuesday that DNA evidence gathered from a pair of gloves found near Nancy Guthrie’s ...

The White House is clapping back against media reports alleging intelligence officials have been using the end-to-end encrypted messaging app Signal to send classified information, describing the ...

Mike Waltz, the departing national security adviser at the center of "Signalgate," is seen in new photos using the commercial messaging application during a Cabinet meeting held by President Donald ...

The Nevada Dept. of Motor Vehicles provided inaccurate information in a legal proceeding about DMV chats with federal ...

The news of Trump officials using Signal for a group chat on military operations has raised many questions about just how secure such messaging apps are and the risks if government officials use them ...

Former national security adviser Mike Waltz was photographed using a Signal-like messaging app during Wednesday’s Cabinet meeting, more than a month after he first came under intense scrutiny for ...

On ThursdaY, Reuters published a photo depicting then-United States national security adviser Mike Waltz checking his phone during a cabinet meeting held by President Trump in the White House. If you ...

Former White House national security adviser Mike Waltz was seen using the encrypted messaging app Signal in photos taken during Wednesday's Cabinet meeting. Waltz was removed as national security ...

Investigators are using signal sniffer to try to detect Nancy Guthrie's pacemaker.