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"Interestingly, if the number provided by Hushed was previously registered by another user, the WhatsApp account is "inherited", including group memberships. A

"Interestingly, if the number provided by Hushed was previously registered by another user, the WhatsApp account is "inherited", including group memberships. A non-negligible percentage of the accounts we registered had been in active use, with personal and/or group messages arriving after account takeover." Did not know that taking over a WhatsApp account is that easy.

hiq 6y ago
You can set a pin which I think would reset your account eventually if you want to register the same number but fail to provide the correct pin, and the previous owner of the phone number does not use WhatsApp in some time.