As the most popular messaging app in the world, millions of people depend on WhatsApp to deliver messages to friends, coworkers, acquaintances, and loved ones daily. According to WhatsApp ...

There are a number of warning signs that your WhatsApp account may have been hacked ... or find that unread messages are marked as read, meaning that someone else has checked them before you.

WhatsApp will soon launch a built-in dialer for iPhones, enabling users to call any registered number without saving it.