Hi @benfellah1992, thanks for reaching out.
Firstly, is this a username you recognize that may have been created through another plugin, or user management product and is being reported wrongly or is it an admin that shouldn’t exist at all? The name ‘bqiadmin’ hasn’t flagged up as one common to a specific plugin. If you know that you’ve created the admin it’s perfectly safe to “Ignore” the scan warnings.
If the user shouldn’t be there, I would recommend deleting it and turning on 2 Factor Authentication to be enforced for admin users. If you’re the only admin, set yours up and don’t turn on a grace period for other users.
Update your passwords on your hosting control panel, FTP, all WordPress admin users, and database to try eliminating a possible attack vector that was open for somebody to log in and create this user.
Just to be safe, I would ask your host if they see any admin accounts, outside of yours that can access FTP or the database on your site.
Thanks,
Peter.