I have had two WordPress blogs. That was in a time when I was doing virtually no online marketing, and until I found time to deal with the situation (weeks later), these sites were penalized in the main search engines. They were not eliminated the evaluations were reduced.
Finally, installing the fix wordpress malware fix Scan plugin will check most of this for you, and alert you that you may have missed. It will also tell you that a user named"admin" exists. Needless to say, that is your user name. If you wish you can follow a link and find instructions for changing that name. Personally, I believe that a strong password is security that is good, and there have been no attacks on the several blogs that I run since I followed these steps.
The one I recommend, and the approach, is to use one of the generation and storage plugins available for your browser. I think after a free trial period, you need to pay for it, although people like RoboForm. I use the free version of Lastpass, and I recommend it for those who use Internet Explorer or Firefox. That will generate passwords for you; you use one master password to log in.
I don't think there's a person out there that after learning just how much of a problem WordPress hacking is that it's a fantastic idea. Something I've noticed over the years is that when it comes to securing their blogs, bloggers seem to be stuck in this reactive state.
BACK UP your site and keep a copy on your computer and off-site storage. If you have a website, back up every day. You spend a whole lot of money and time on your website, don't skip this! The one complete solution that does it all is BackupBuddy, no back up your files, widgets, database and plugins. Need to move your site this will do it!
However, I recommend that you install the Login LockDown plugin as opposed to useful link any.htaccess controls. That will stops login requests from being permitted from a for see page an hour or so after three unsuccessful login attempts. You can access your admin cell while and yet you still have protection against hackers, if you accomplish that.