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!
Since scare tactics seem to be at the very least start considering the issue, or what drives some people to take how to fix hacked wordpress a bit more seriously, let me shoot a scare tactics your way.
You can search for software that will backup your database and files. You can easily restore your website with the use of your backup files and change everything that must be changed, if hackers abruptly hack your site.
You also need to set the"Anyone Can Register" in Settings/General to away, and you should have some sort of spam plugin. Akismet is the one I use, the old standby, but there are lots of them nowadays.
BACK UP your website and keep a copy on your computer and storage. If you have a very about his active site, back. You spend a whole lot of time and money on your website, don't skip this! The one complete solution that does it all is BackupBuddy, no other plug-ins back up database, widgets, plugins and your documents. Need to move your site to another server, this will do it!
Software: If you've installed scripts that are free search Google for'wordpress security'. You will get many tips.