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!
By default, the latest version of WordPress is pretty secure. The development team of WordPress has considered anything that might have been added to some fix wordpress malware cleanup plugins. Before, WordPress did have holes but most of them are filled up.
Hackers do not have the power when you got these lined up for your security, to come to a WordPress blog. You definitely can have a secure WordPress account especially that one that provides you big bucks from affiliate marketing.
Exploit Scanner goes through the files on your site post, comment and database tables seeking anything suspicious. Additionally, it notifies you for plugin names that click here to find out more are unusual. It does not remove anything, it warns you.
Note that you should only try this last step for setups. You will also have to change all of the table names inside the database if you might like to do it click for installations.
The plugin should be updated have WordPress, play nice and to remain current with the latest WordPress release and restore capabilities. The ability to clone your site (along with regular backups) can be helpful if you ever need to do this article an offline website redesign, among other things.