You can enable two-step verification to "lock" your number. But yeah, using phone number as your platform ID is a very bad thing (security and privacy wise). ht

You can enable two-step verification to "lock" your number. But yeah, using phone number as your platform ID is a very bad thing (security and privacy wise). https://faq.whatsapp.com/general/verification/about-two-step-verification https://faq.whatsapp.com/general/verification/about-two-step...