Always ensure that your smartphone is locked with a security pin or password and make sure that you disable all notifications on your lock screen. However, you need to be careful if you may have left your phone around for a while and someone could get access to the text message for the code. Don’t worry or panic-without the code, he or she cannot activate your WhatsApp account on their phone.
If the message comes in frequently, then there could be someone who knows your number and is playing a prank with you or it could be that someone is trying to gain access to your WhatsApp account.
If you already have WhatsApp installed and are using it, simply ignore the message. The text message also carries a url ‘’ which takes you to the WhatsApp website so that you can download the application to your phone. If he or she accidentally types your number down (it could be an error in the number entry) and you will receive the message. So if you have received a message, it could be that someone with a phone number almost similar to yours is trying to activate his WhatsApp messenger.