DELETE THE ‘ADMIN’ USER FOR YOUR WP SITE
Before you do that, make sure to create a new administrator account, log out from the original admin account, log into the new account and only then attempt to delete the old admin account.
CHANGE YOUR PASSWORDS REGULARLY
That should be a no-brainer but it is surprising how many sites get hacked because of simple passwords being used. The Geek Stuff offers some ideas for creating strong passwords but if your WordPress is updated, it will tell you if the new password is strong enough.
INSTALL SECURITY PLUGINS ON YOUR WP SITE
A terrific WordPress plugin, Limit Login Attempts is a good start.
PASSWORD PROTECT YOUR WP-LOGIN PAGE
Your hosting company should offer this and if not, you should perhaps change your web hosting company. I can highly recommend LunarPages! Use code “aff15off” for 15% off of a new shared hosting account if you sign up today!