1. Someone will call u with a certain number.
2. He will tell you he wants to create adifferent/new WhatsApp group/account so he wants to add u.
3. Then he will send u certain code through SMS.
4. He will then call u and ask u to mention the code to him.
5. If u are not smart and u give him (hacker) the code, he will key it into the system.
6. WhatsApp will then ask u to reset ur system by entering the code.
7. After doing it u will be automatically removed from any of the WhatsApp groups.
What to do?
If someone asks you of creating any WhatsApp group/account and therefore he's sending u certain code, don't entertain the person. Just end the call. If not .....