http://privacyy3tsy4mge4qmg4nsid2vnhl7szzupphhkfsxvayx5tl2ztbqd.onion/facebooks-corrupt-off-platform-surveillance/index.html
How Facebook tracks you Facebook uses among the most maliciously pervasive surveillance tools available, including “cross site” cookies and tracking scripts embedded on other websites. Cross Site These “cross site” cookies and scripts are designed to report back to Facebook your activity on other websites off the platform [7] [8] – not just that you went to the site, but in some cases what you bought or said