If your WordPress site has been developed by Nicholas Coupland Web Design a powerful security plugin would already protect your site from outside harm. In saying this, a security plugin can only do so much and these few tips will also help locked down your site further.
Use Strong Passwords
It might sound obvious, but it’s amazing how many people secure WordPress login accounts with really simple passwords. Just to be clear, admin123 is not deemed a secure password. Try using a tool like this to see what a strong password looks like – http://www.networkdynamics.com.au/password-strength-checker/
Remove The User – Admin
When we install WordPress, we never use “admin” as the administrator username. If you do have “admin” as a user for whatever reason, we suggest deleting this account and settings up a new admin account with a username like “Paul1980”. You’ll need to add the new user, then login as the new administrator to delete the old administrator account (don’t forget to assign the old admin posts to the new user).
Keep WordPress, Plugins and Themes Up To Date
Like all software, your WordPress installation, plugins and themes need to be kept up to date. Updates contain bug fixes and secuity updates, so it makes sense to be running the latest version. it’s also a good idea to remove and plugins and themes you are no longer using.
Use Security Plugins
There’s a number of great plugins out there that can help protect your WordPress admin. Our sites come with a great plugin that detect brute force attacks and has a built in firewall to detect suspicious behavior on your site.
Further WordPress Hardening Information
There are other security measures that can be done to harden your WordPress install. If developed with us these task would have already been performed, otherwise checking file permission, disabling file editing, secure with htaccess and changing keys and salts are just some of the other things that can be done. Check out this article to learn more: http://codex.wordpress.org/Hardening_WordPress