Who uses WhatsApp Messenger? From The look of the Play Store listing, a damn lot of people. Considering it's so popular, it's probably a pretty secure app, right? Think again.
WhatsApp actually sends all chats in plaintext, so anyone on the same Wi-Fi network can easily pull your entire conversation - including pictures and videos - straight out of the air. And now, that process is even easier than ever thanks to a new app called WhatsAppSniffer. It's basically just a packet sniffer, but it makes the process of pulling WhatsApp chats out of the sky stupid-easy, and that's never a good thing.