A message sent to the Norwegian prime minister on Sunday could threaten decades of progress in building up the NATO alliance.

Researchers analyzed WhatsApp metadata to test how accurately people judge their own messaging habits and response patterns.

On December 3, 1992, in Newbury, England, computer scientist Neil Papworth texted two words—“Merry Christmas”—to Richard Jarvis, a Vodafone engineering director, who was across town at a Christmas ...

With so much of our lives contained on our devices, especially our iPhones or iPads, it can feel particularly devastating if you accidentally delete a message you still need. Whether it is ...