By their cell phone number, security experts Nick DePetrillo and Don Bailey say hackers can obtain the user's name, address, workplace, location and more. They say they could even eavesdrop on your calls.
LATimes.com lays out the details of the vulnerabilities.
Apple recently got stung buy a rogue developer in its iTunes App store, but they do not face security threats alone.
Matthew Fortner has been at The News & Observer since 2002. He has a passion for gadgets, cutting-edge technology and all things geek.