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!
WordPress is a secure system but applications has their flaws and security holes are found on WP. This is why WP releases new updates . As soon as they discovered any vulnerability, they provide a new update and instantly make some changes. You need to comprehend the regions where these plug-ins work to assist dig this you protect your investment if you want to know more about the best fix hacked wordpress plugin .
Strong passwords - Do what you can to use a strong password, alpha-numeric. Easy to remember passwords are easy to guess!
Move your wp-config.php file one directory up from the WordPress root. WordPress will search for it there if it cannot be found in the main directory. Additionally, nobody will have the ability to read the document unless they have FTP or SSH access.
Note that you should try this step for new installations. You'll also need to change the table names More hints within the database, if you might like to get it done for installations.
Don't use wp_ as a prefix for your databases. Most web hosting providers are currently removing that default but if go yours does not, fix wp_ to anything but that.