Keep headers/logos under 125 pixels high. It takes up valuable viewing space, especially for laptop users, that is best left for the good stuff to appear"above the fold." Take a cue from the big companies, simple logos done well say it all. This is our #1 pet peeve - screaming logos and headers!
Backing up your blog regularly also helps in procuring from fix malware problem hackers. You must keep a copy of your files hide away in backup system that you can be confident of your database. This makes you a protected files that serves you in times of down that is sudden is the machine. Hackers are less likely to slip from a secured back up system.
It all will start with the basics. Attempt to use passwords. Use spaces, numbers, special characters, and letters and combine them to make a password. You could use.
Should you ever wish to migrate your website elsewhere, such as a new web host, you'd have the ability to pull this off without a hitch, and also without having to disturb your old site until the new one was in place and ready to roll.
Imagine if you visit WP-Content/plugins, can you view that folder? If so, upload that blank Index.html file inside that folder as well so people can not visit this site view what plugins you have. Because even if your version of WordPress is current, if you're using a plugin or an old plugin with a security hole, then someone can use that to get access.
The plugin should be updated play nice with your other plugins, to stay current with the latest WordPress release and have WordPress cloning and restore capabilities. The ability to clone your site (in addition to regular backups) can be useful if you ever need to do an offline website redesign, among other things.