Have had WordFence Premium for a few years now and have been very satisfied with its performance. Recently it warned me that I had unknown WordPress files on my site (with a list of the files, all 751 of them). Contacted WordFence to see if they could provide any additional information. Learned that the files were probably do to something being done by the hosting company. Contacted the hosting company by email, no response after 24+ hours so entered a chat session. Hosting company support person said they weren't their files and could be deleted. I deleted the files and they just continued to come back. Contacted the hosting company support again asking to have someone contact me with an explanation and assistance in removing the files and after a week, no response. Per WordFence, they have seen this on 3 WordPress sites hosted by this company and they don't respond or address the problem. Time to switch to a new hosting company. In the meantime, 5 Stars and 2 Thumbs Up to WordFence and Phil who assisted me.