You can set a lock pin on your WhatsApp account. It offers an option of two-step verification. You can enable it and set the lock pin for your account. So you can put a fingerprint or pin lock on your WhatsApp account.
WhatsApp offers a feature to change from your old number to a new number. You can set the new number on your same old WhatsApp account. Furthermore, when you change your number on Gb WhatsApp https://gbwa.download/ your whole data is restored. Hence, you can view them with a new number on WhatsApp too.