Apple has some new fans -- members of law enforcement.
Between the new iPhones coming out Friday and the new iOS7 operating system released Wednesday, police are hoping thieves won't be able to resell stolen phones.
San Francisco Police Chief Greg Suhr said cell phone theft is an epidemic.
"Two out of three robberies in the city involve a mobile phone," Suhr said. "We’ve made more robbery arrests than narcotics arrests for the first time in my 30 plus years in the police department."
Police said the phones are a target because they are easy to clear and resell. The new iPhones come with a fingerprint sensor that serves as a barrier for thieves looking to unlock the phone.
The new iOS7, which most iPhone users can download now, also includes a new activation lock. If the lock is on thieves can't wipe the phone clean without a password.
Suhr said he hopes users turn it on in droves and word on the street spreads.
"Hopefully this will make them less attractive, after a few are stolen," he said.