One of my wordpress sites has been hacked twice now by the same Turkish hacking scum. I did change passwords the second time, 15 characters long with various combinations etc but that didn't stop them.
In the end I had to rename the login file to stop them from doing it a third time, it would seem they simply used a password app that used brute force to get entry because WordPress doesn't have a attempt blocker ie password wrong for 3 attempts and you are locked out 30 minutes or something. Anyway I just wanted to say how disgusted I am at how easy you make it for them