After messages from Mike Waltz's leaked chat on the Signal app went massively public months ago, he was ousted as President Donald Trump's top national security adviser. Now, he's up for a new ...

Signal is a messaging app that's available for iOS and Android devices. Like the best messaging apps, it supports cross-platform text, voice and video chats.

But over all these years, I barely use Signal even though I prefer it greatly over WhatsApp. And that’s because of a major advantage WhatsApp has over the privacy-focused messaging app.

Until recent news involving the Signal app, it was a relatively unknown messaging app compared with WhatsApp to many nontechnical users.

But Signal can have group chats with up to 1,000 people. Signal is free to download in the Apple App Store for iPhone and available for Android devices on the Google Play Store.

The Signal Desktop app now has a new security feature to prevent Microsoft Recall from taking screenshots of chats. This feature utilizes a flag similar to Android's "FLAG_SECURE" to protect user ...

A cybersecurity expert explains what features to look for when choosing a secure messaging app amid White House controversy over Yemen attack plans.