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A number of our smaller websites are based on WordPress and I thought I would start a thread in regards to things we have seen and tips I have picked up.
Over the last several years as some of our sites grew in popularity I have noticed more unwanted attention and attack attempts. Some of those attempts were successful and we lost sites (ALWAYS HAVE BACKUPS). I am not sure of the intent of the attacks but it seemed to me that it was just to take us offline as the sites were basically deleted and no data was taken.
I found since installing the plugin WordFence that all of these and other attempts have stopped - so I highly recommend you look at it for any of your WordPress based sites.