How can I change the name of a Viber group without having administrator rights?

Question

Viber

There is a group in viber with three admins (three numbers, all my numbers)
And one day a regular user of the group (without admin rights, and not when he did not have them) changed the name of the group.
AS ??

The new name appeared for other users and for me as an admin too. At the same time, an automatic message appeared in the group itself stating that the user [username] has changed the name of the group.

Answer 1

As you do, so he did. There is nothing tricky there.