Comment by pnw
1 month ago
Can someone explain how this works on iOS post Apple's removal of IDFA? The advertising ID (MAID) in any specific app is relevant only to that app, so it seems like it would be useless for profiling? I don't see how apps can access any other identifiers on iOS. Even the wifi MAC address is randomized.
If you've gone one step further and disabled location access for apps and disabled the global ad id, it would seem difficult to do the searches described.
The article refers to "25 percent of Apple phones". Is that just legacy phones running older versions of iOS prior to removal of IDFA?
I think the 25% is referring to the users who willingly select the option to allow tracking. It sounds like this report actually corroborates Apple's claims of the impact of this decision.