I have had two WordPress blogs. That was in a time when I was doing almost no online advertising, and until I found time to handle the situation (weeks later), these sites were penalized in the main search engines. They weren't eliminated the evaluations were reduced.
Installing the fix wordpress malware protection Scan plugin alert you that you might have missed, and will check all this for you. Additionally, it will tell you that a user named"admin" exists. That is the administrative user name. If you wish you can follow a link and find directions for changing that title. Personally, I believe that there is a password security that is good, and because I followed these steps, there have been no successful attacks on the sites that I run.
Don't depend on your Web host - Many men and women find out here now depend on their web host to"do all that technical stuff for me", not realizing that sometimes, they do not! Far better to have the responsibility lie with you, rather than out.
You need to create a new user with administrator rights, before you can delete the default admin account. To do this go to your WordPress Dashboard and click on User -> Create New User. Enter all of the information you will need to enter.
Install the WordPress Firewall Plugin. Stop and this plugin investigates web requests with heuristics to identify attacks that are obvious.
But realize that online security is. Don't only be the type that is reactive, consider action to begin today, protecting yourself. Don't let Joe the Hacker make your life miserable and turn all in creating come crashing down in a matter of seconds that you've worked so hard.