I have a old user account luckily my own, today when i logged into phpmy admin i discovered that i can see 2 other users databases, This behaviour has come after the lates update Version: 2.2.26. I have also updated phpmyadmin to latest version but i dont think thats the issue how can i fix this web51u1 and web52u1 can only see their own databases
The problem is the username with the underscore in it as mysql handles a underscore in usernames like a wildcard. Thats why ispconfig chnaged the username scheme. There is not much that you can do except to create new databases / users for all users with underscore, migrate the data to the new databases and then delete the old database and user.