A Pentagon inspector general report concluded that Secretary of War Pete Hegseth sent sensitive, nonpublic strike information over the encrypted app Signal using his personal phone, a violation of ...

The encryption protecting communications against criminal and nation-state snooping is under threat. As private industry and governments get closer to building useful quantum computers, the algorithms ...

The Pentagon’s inspector general has received evidence that the military plans shared from Secretary of Defense Pete Hegseth’s Signal account to a group chat earlier this year were taken from a US ...

Signal has updated its Windows app to protect users' privacy by blocking Microsoft's AI-powered Recall feature from taking screenshots of their conversations. This new privacy feature, dubbed "screen ...

A messaging service used by former National Security Advisor Mike Waltz has temporarily shut down while the company investigates an apparent hack. The messaging app is used to access and archive ...

The nation’s top intelligence officials have told lawmakers that it was routine for them to discuss sensitive national security issues on the encrypted messaging app Signal. It’s widely used at their ...

Signal and WhatsApp are both end-to-end encrypted messaging apps, but they differ in ownership and data collection practices. WhatsApp, owned by Meta, collects metadata on users, while Signal, a ...

This is your signal to invest in secure messaging. After The Atlantic’s editor-in-chief, Jeffrey Goldberg, was mistakenly added to a Signal group chat involving top White House officials, it begs the ...

"I take full responsibility," said National Security Adviser Mike Waltz. The White House is continuing to downplay and deflect criticism over a Signal group chat among top Trump administration ...

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 ...

Claims that former U.S. President Joe Biden's administration initially authorized the use of Signal by government officials spread in late March 2025 after The Atlantic reported national security ...

Signal, the most secure widely available messaging app, has become a go-to resource for journalists, leakers and other people concerned about privacy. But it’s not infallible. And its shortcomings and ...