Apple's launch of the iPhone 5 in September came with a bunch of new commercials to promote the device.
But Apple didn't shout quite so loud about an enhancement to its new mobile operating system, iOS 6, which also occurred in September: The company has started tracking users so that advertisers can target them again, through a new tracking technology called IFA or IDFA.
Previously, Apple had all but disabled tracking of iPhone users by advertisers when it stopped app developers from utilizing Apple mobile device data via UDID, the unique, permanent, non-deletable serial number that previously identified every Apple device.
However, in iOS 6, tracking is most definitely back on, and it's more effective than ever, multiple mobile advertising executives familiar with IFA tell. (Note that Apple doesn't mention IFA in its iOS 6 launch page).
Users can switch off that targeting, but it's tricky. Watch the video below to turn off and use Apple without being tracked:
Read more about it at: Business Insider
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