HOW TO LOCK WHATSAPP ON ANDROID

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Hey friends, Whatsapp is a popular messaging service that is already well secured. But the fact is that anybody can have your phone and read all of your chats which you might not
want to share. So, what to do then? Simple, just follow the given steps:

Download Lock For Whatsapp from play store.
And install it.
Now, whenever message comes on phone, you first need to unlock Whatsapp by drawing pattern: