People relied on a small glitch to know if they'd been blocked on WhatsApp. That glitch just got fixed, and the old signs are now all that's left.

X has officially launched XChat for Android, bringing its standalone encrypted messaging app to Google's mobile platform.

Vitalik Buterin says obfuscation could improve blockchain privacy, but current runtimes remain too slow for practical use.

Millions of mobile phone users in the United States remain exposed to a well-documented surveillance technique: fake cell ...

WhatsApp has closed the loophole that allowed users to check whether someone had blocked them through the app’s ...