After some time I've logged in in my postgres database and I discovered some strange databases and users I have never create. I try to delete them but i seem not to be superuser, while I'm sure to have assigned the attribute to myself. If I list all roles there is not one superuser.
Have I been hacked? I don't know, but the serious question is how do I crate an account with superuser privileges in order to solve the problem?
I really really hope that I don't have to reinstall postgres.
Thanks in advance for any help