I Just received an AdSense policy violation that I'm having trouble wrapping my head around. It is a copyright violation notice for a site that I don't own.
It appears that for some reason this site is using my ad code. The site appears in the list of sites that use my ad code, but I haven't authorized it. Note that the checkbox in the screenshot below is gray, not green.
Because it isn't authorized, my ads shouldn't be showing up anyway, even if they are using my ad code.
The notice suggests that I remove the ad code from this page. Obviously I can't do that since I don't own the site.
Why did Google send this to me when it knows I don't own the site and ads shouldn't show up there anyway? Is there anything I actually need to do about this? Is it possible that this will hurt my AdSense account in some other way?