I like to keep my database name, username etc in a special secure place, not in the standard configuration file.
So I’m going to make those changes next (details not published of course but in my personal notes!)
This has not proved to be as simple as it should. The first attempt gave a Headers already sent error (meaning “white space exists in the script before the PHP tags, data has already been printed, or a file has been included”).
So I have suspended this technique until I have explored the WordPress files some more.