3 ms·
Bluetooth. Device A and Device B can see eachother, occassionally throughout the day, via bluetooth. An app using either the Google or Criteo Framework records
by zaarn 7y ago
Bluetooth. Device A and Device B can see eachother, occassionally throughout the day, via bluetooth. An app using either the Google or Criteo Framework records these and through knowing that one devices has VPN on, knows that it's endpoint is likely not real and assigns the two devices together.
Even better, thanks to criteo's bluetooth beacon service, if you go to pick up your pizza, they will know you bought it and can present you with further ads from that specific pizza chain.
If you think Criteo isn't doing that, you should check out their marketing material.
- cameronbrown 7y agoA simpler explanation is both devices have location services on, or are on the same WiFi network (same SSID).
- zaarn 7y agoCriteo's framework relies on Bluetooth more than Wifi IIRC. They love telling you about how accurate their bluetooth beacons are.
- panpanna 7y agoThis is true and the reason I register all my Bluetooth devices while on business trips. Typically on a busy train or plane