Reports are now coming in that when you install Oculus Home from Facebook/Oculus, the license agreement states that Oculus Home you’re giving ‘facebook permission to install services that monitor your PC 24/7 and send data to the facebook servers‘.
To save reading an entire long post – the two services are named OVRServer_x64.exe and OVRServiceLauncher.exe IF you want to know how to block them http://www.howtogeek.com/227093/how-to-block-an-application-from-accessing-the-internet-with-windows-firewall/
Thanks /u/texbird.