In 2014, Apple unveiled AirDrop for iPhone and iPad, a feature that lets you quickly share files wirelessly with other iPhone users near you. It wasn’t long after its release that reports began popping up of people using the feature to send strangers crude photos. Lately it has become a frequent issue on the NY Subway system and other places where people are stuck in close quarters. If you are concerned, you can turn AirDrop off or make your phone available only to those on your contacts list. Here’s How to Turn off AirDrop. If your children have their own iPhone or iPad, it is something to consider doing for their device.