Does the new sim card have viber contacts of the previous owner?

Question

Information Security

A friend bought a Beeline sim card for a new phone. I gave her a new google account. I installed a viber - there are a bunch of groups with left contacts and our number is displayed as a certain Galina.
It seems that everything is clear that viber is an international company and the Russian operator beeline is not much connected, but what to do in such a situation? Just erase your viber contacts or order a new SIM card? Can there be any thread interceptions of data or fraudulent schemes for such a scenario of bu / numbers and services with confirmation codes.
It's just that the question is so acute, because in the modern world there are a lot of confirmations from foreign services, and when you change the number, all subscriptions are obtained, the accounts are, as it were, tied to the bu number. What are your thoughts on this? How to buy SIM cards so that the previous owner is not registered on a BDSM gay dating site or on terrorist sites ... It remains only to wait for the chipization of a clear identification of each. Hmm..

Answer 1

You can order the "number change" service and hope that the new number did not belong to anyone before or belonged to a subscriber who was less active in terms of social networks.

Answer 2

Erase Viber's contacts
Galina simply did not pay Beeline again. The number fell into the "sump". After some time, for example, a year later, you got this number.