If you don’t like being followed you’ll probably have to get rid of your iPhone or fiddle around with the settings to turn off the always-on, corporate stalker mode.
Business Insider, amongst many other iPhone centric websites, is reporting that there is an advertising tracker in the iOS 6 that’s automatically enabled.
The tracker is very similar to Electronic Arts’ marketing tracker in Origin, which monitors what goes on your PC, what you’re using, what program you use most and often visit chat rooms, amongst other things. Just like with Origin, the tracker in the iOS 6 is used to monitor your browsing and usage habits to help marketers better aim their ads to your needs. This sort of stealth-stalker marketing tactic is being used rather frequently across a broad range of devices and oftentimes shows up on PC as a “ad-tracker cookies”.
You can disable the tracker in your iPhone, also known as an IFA (or Identifier For Advertisers) by heading to the general settings under the about tab. You can find out more details on how to disable the tracker at Business Insider.