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!
Cloning your website is just another degree in clean hacked wordpress site which may be useful. Cloning simply means that you have backed up your site to a totally different location, (offline, as in a folder, so as to not have SEO issues ) where you can access it in a moment's notice learn this here now if necessary.
This is great news as it means that there is a community of developers and users that could improve the platform. However, whenever there's a group there'll always be people who will try to take them down.
Keeping your WordPress website up-to-date is one of the most easy things you can do. For the last few versions, the ability to install updates has been included by WordPress. Not only that, but sites are notified every time a new upgrade becomes available.
You can extend the plugin features with premium plugins like: Amazon S3 plugin, Members only plugin, DropShop etc.. I think you can use it and this plugin is a good more information option.
Using a plugin for WordPress security makes sense. Backups need to be performed on a regular basis. Do not become a victim of not being proactive about your site because!