WhatsApp is the most popular instant messaging application. However, not too sure it is not too sure because it sends all messages unencrypted. To exploit this security flaw you can use WhatsApp Sniffer, a tool that lets you read other people’s conversations from your Android.
WhatsAppAll security issues are well known. This popular application sends unencrypted messages , which means that anyone on the same WiFi can get the talks without too many problems. An application for this is WhatsApp Sniffer.
This is a packet sniffer that automatically get WhatsApp chats going on at that time on that network. So if you connect to WiFi and run the application you can get all the WhatsApp conversations that are circulating for that network at that time.
The App is no longer available con Google Play so here you can get the APK: Download WhasApp Sniffer (APK)
You may want to download Whatsapp.. here you can check for the latest version and novelties.