If you are a WordPress blogger like me, check out the CodeGuard plugin available at WordPress.org website. CodeGuard will back up and monitor your site for changes. When a change is detected, it will alert you and take a new backup of your database and site content. It works like a time machine. If you want to revert some changes or undo a hack attempt on your site, just a click of a button can get your site back in time. It also integrates well with WordPress.
Link to download the plugin: wordpress.org/extend/plugins/codeguard
Or visit their website: www.codeguard.com