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!
Finally, how to fix hacked wordpress will tell you that there is not any htaccess from the wp-admin/ directory. You can put a.htaccess file if you desire, and you can use it to control access to the directory from IP address or address range. Details of how to do that are available on the internet.
You can search. If your site is abruptly hacked by hackers, you can restore your site by means of your files and change everything that must be changed.
Move your wp-config.php file up one directory from the WordPress root. WordPress will look for it if it can't be found in the root directory. Additionally, nobody will be able to read the document unless they've SSH or FTP access to your server.
As I (our fictitious Joe the Hacker) understand, people have way too many usernames and passwords to remember. You've got Twitter, Facebook, your online banking, LinkedIn, two blog logins, FTP, internet hosting, etc. accounts which all come with logins and passwords you will need to remember.
Implementing all of the above will take less than an hour to finish, while creating your WordPress website more immune company website to intrusions. Over 1 million WordPress sites were cracked last year, largely due to preventable security gaps. Have yourself prepared and you are likely to be on the safe side.