I believe you are referring to the "perma-cookie"? (directed to all the confused replies) Please feel free to correct me. https://www.wired.com/2014/10/verizo

I believe you are referring to the "perma-cookie"? (directed to all the confused replies) Please feel free to correct me. https://www.wired.com/2014/10/verizons-perma-cookie/ https://www.wired.com/2014/10/verizons-perma-cookie/