New York Attorney General Eric Schneiderman has a "thumbs up" for Apple's new smartphone operating system.

Apple's iOS-7 released earlier today is the first to include a theft-deterrent feature that remotely locks up a stolen phone. "Activation Lock" makes the phone impossible to reprogram. In effect, the phone becomes a paperweight with zero resale value. It's part of the operating system, so it will work with any Apple device that uses the new software.

Schneiderman and the District Attorney of San Francisco have been leading a nationwide push for this sort of technology. They say smartphone and tablet thefts too often turn into violent crimes, but activation lock technology eliminates their resale value and the reason for stealing them.