Wordpress making it "easy" for hackers
Starting with WordPress 4.4, if I am understanding things correctly, a content scraper's job has been made a whole hell of a lot easier. There is a bit of code (again, if I understand things correctly) that gives oEmbed customers the ability (and permission) to embed content via an iframe to their site - thus benefitting from YOUR content or images if I understand this correctly.
If this is the case, this could well be why I see tons of phantom server hits (from Amazon, Google Cloud, Drake Holdings, and other server farms).
I'm maintaining throughout this post that it is "if I am understanding things correctly". I'm not sure if I am misreading this or not. I do know that as of right around wordpress 4.4, there was a few additional lines of code introduced and one of which exposes the "true author name". On my sites (as a security feature), I utilize a nickname that is different from my wordpress user name. I also take measures to hide the "author" links. The way I understand things, the "nickname" cannot be used to log into wordpress, so this serves as an added layer of protection (considering no one will be able to in theory guess my chosen user names). However, in exploring this code, I find my nick name and my user name - much to my surprise. It was at this point that I found that oEmbed bit of code.
If I am not understanding the code and the embed features correctly, someone please chime in.