Finally, you can always roll your own VPN if you have an always-on device at home , or a router that supports OpenVPN. You could even turn a $35 Raspberry Pi into a personal VPN you can connect to while you're on the go. Of course, this option is for the security-minded, not the privacy minded (as your traffic is only encrypted between a user and your home VPN server or personal router, and then unencrypted as it goes out to your ISP) but it's always an option, and add-ons like Privoxy (which we've shown you how to set up ) can offer some anonymity for your home VPN.
What makes the results so unsettling is the range of data sources—location information, activity on other apps, facial recognition on photographs—that Facebook has at its disposal to cross-check its users against one another, in the hopes of keeping them more deeply attached to the site. People generally are aware that Facebook is keeping tabs on who they are and how they use the network, but the depth and persistence of that monitoring is hard to grasp. And People You May Know, or “PYMK” in the company’s internal shorthand, is a black box.