

The absence of notice to users or any control option can only stem from an ignorance about privacy at the design stage." The existence of that data creates a real threat to privacy. Location is one of the most sensitive elements in anyone's life – just think where people go in the evening. Simon Davies, director of the pressure group Privacy International, said: "This is a worrying discovery. "We haven't come across any instances of other phone manufacturers doing this." "Alasdair has looked for similar tracking code in Android phones and couldn't find any," said Warden. Only the iPhone records the user's location in this way, say Warden and Alasdair Allan, the data scientists who discovered the file and are presenting their findings at the Where 2.0 conference in San Francisco on Wednesday. "Apple has made it possible for almost anybody – a jealous spouse, a private detective – with access to your phone or computer to get detailed information about where you've been," said Pete Warden, one of the researchers. For some phones, there could be almost a year's worth of data stored, as the recording of data seems to have started with Apple's iOS 4 update to the phone's operating system, released in June 2010.
