This ingenious new iPhone app is a powerful way to foil data snoops

Will Strafach is best known for being an early and frequent jailbreaker of Apple's iOS operating system for iPhones and iPads. But Strafach has always aimed for the white-hat side of the hacking ethical divide. He's in favor of people having more control of what apps they use-and receiving better disclosure about where information on their phones winds up.