The White House expressed support Monday for Defense Secretary Pete Hegseth following media reports that he shared sensitive military details in another Signal messaging chat.

The Russian state-sponsored threat group APT28 is using Signal chats to target government targets in Ukraine with two previously undocumented malware families named BeardShell and SlimAgent.

Over the last decade, the open-source movement has not only transformed the world of software, but also catalyzed a sweeping revolution in hardware tinkering. At the heart of this shift lies a ...

The existence of the unsecured internet connection is the latest revelation about Hegseth's use of Signal and raises the possibility that sensitive defense information could have been put at risk.

A PWM-controlled regulator, this time using a logic gate IC, op-amp, and resistors and capacitors to buffer the PWM signal.

On Monday, a report from 404Media found that a hacker obtained direct messages and CBP contact information from TeleMessage after Mike Waltz was spotted using the company’s modified version of ...

TeleMessage came into the spotlight last week after it was reported that former U.S. national security adviser Mike Waltz was using TeleMessage’s modified version of Signal.

More than a month after he drew criticism for using Signal to discuss an impending military attack, Waltz was seen using what appears to be a different messaging app to message others in the Trump ...

Mike Waltz Caught Using App Even Less Secure Than Signal Trump’s recently ousted national security advisor just keeps making things worse for himself.

Photo appears to show Mike Waltz using Signal-like app that can archive messages More than a month after he drew criticism for using Signal to discuss an impending military attack, Waltz was seen ...

A photo taken this week showed Mike Waltz using an app that looks like—but is not—Signal to communicate with top officials. "I don't even know where to start with this," says one expert.

Rep. Pat Ryan, a former Army intelligence officer, criticized Mike Waltz’s “brazen disregard” for the U.S. military over his use of the Signal group chat to facilitate talk about an attack.