The problem is that bots came to the group (pass the captcha validation, maybe by human interference) with a generated username (@nsk87347345 by example) and after they had been accepted on the group, they change their usernames so the admins can't find them anymore. I notice this process yesterday, late at night.
A solution could be a default watching the process for new users. The bot will watch for any username change and log it at the log channel (if available) and always write it on the group. It will help admins to improve the ban process of malicious bots or fake users.
The problem is that bots came to the group (pass the captcha validation, maybe by human interference) with a generated username (@nsk87347345 by example) and after they had been accepted on the group, they change their usernames so the admins can't find them anymore. I notice this process yesterday, late at night.
A solution could be a default watching the process for new users. The bot will watch for any username change and log it at the log channel (if available) and always write it on the group. It will help admins to improve the ban process of malicious bots or fake users.