• FlowVoid
    link
    fedilink
    English
    arrow-up
    1
    ·
    edit-2
    1 year ago

    Ok, so if I visit a travel site with a Like button, then Facebook knows someone visited that site.

    Later if I visit a sports site with a Like button, then Facebook knows someone visited that site too.

    But since I don’t let Facebook store cookies on my browser, Facebook still can’t link the first visit to the second one. Or link those visits to any future sites I visit. So how it can serve personalized ads on them?

    • FarceOfWill@infosec.pub
      link
      fedilink
      arrow-up
      5
      ·
      1 year ago

      It can link first by IP address, and then by fingerprinting.

      Best to use unlock origin etc. to block all those little buttons. Don’t even connect to their server