If you’ve sideloaded the WhatsApp Plus app, it’s best you get rid of it now. WhatsApp has been issuing 24-hour bans on its users for those who’ve been using the unauthorized client. According to the FAQ section of WhatsApp’s site, WhatsApp Plus isn’t supported by the company. And their source code isn’t something WhatsApp can guarantee as safe, meaning your information might be passed on to third parties. They recommend you get the app from Google Play or their website.
Source: Android Central | Via: SlashGear