Security researchers have revealed that Apple’s popular iPhone has been designed to secretly track a user’s location and store the information on the device, without the user’s knowledge. Some phones may contain enough tracking information to trace a person’s movement for an entire year. Pete Warden is one of the researchers who discovered the secret program. He said, “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.”