Windows Phone. Security and Privacy.
Account Security Tips.
Better secure your WhatsApp account and help prevent others from using your phone number in the future by following these tips:- Enable two-step verification to enhance the security of your account.
- Never share a 6-digit WhatsApp SMS verification code with others, even if the other person appears to be someone you know or an organization you trust. WhatsApp does not ask you to share your verification code.
- Set a PIN lock to better secure your phone.