The problem came to light when security researchers found a hidden file on the devices containing a record of everywhere they had been. Used with certain software, the file could generate a map of all a person’s movements with the phone.
In response Apple said: “The iPhone is not logging your location, rather it’s maintaining a database of wi-fi hotspots and cell towers around your current location, some of which may be located more than 100 miles away from your iPhone to help your phone rapidly and accurately calculate its location when requested.”
- Update Your iPhone NOW To Stop It From Tracking Your Location (businessinsider.com)
- Apple acts on iPhone tracking bug with software update to end location tracking (dailymail.co.uk)
- iPhone software update squashes location-data ‘bugs’ (cnn.com)