When White House National Security Adviser Mike Waltz created a group chat using Signal to discuss planning for airstrikes on Iran-backed Houthi rebels in Yemen, it wasn’t the first time Trump ...

A popular messaging app called Signal was recently the preferred communications platform for top officials in the Trump administration to discuss secret war plans. But the use of the app, widely ...

If you hadn’t heard of Signal before Monday, chances are you have now. The secure messaging app, available for iPhones and Android devices, has long been popular with journalists because of its robust ...

With news this week of the messaging app being used to discuss war plans, we get you up to speed on what Signal should be used for—and what it shouldn’t. MIT Technology Review Explains: Let our ...

A former public affairs officer for a state agency that helps people with disabilities find employment filed a whistleblower lawsuit Tuesday in Fulton Superior Court, alleging she was fired for ...

The president of secure messaging app Signal has warned of the security implications of agentic AI, where artificial intelligence (AI) can access systems to help people achieve certain tasks. In the ...

Russian APTs send users fake Signal group chat invites with specifically crafted links or QR codes that instead authorize rogue devices to their accounts in order to spy on future communications ...