Enabling the AirDrop Receiver
The iDevice that will receive content from another Mac or iDevice needs to turn on AirDrop for the tech to work. First, press the Home button to bring your iDevice to the Home screen. Next, swipe your finger upward from the bottom of the screen to invoke Control Center.
As you can see in Figure 4, pressing AirDrop brings up a second dialog box, from which you can enable AirDrop for anyone on your network for contacts you have defined in your Contacts app.
Figure 4 Although the "Contacts Only" option appears to give you the veneer of security, I've found this setting doesn't work well in practice. Instead, set AirDrop to "Everyone," but turn off the receiver when you no longer need it.
When you've finished receiving content via AirDrop, you can bring up Control Center again, tap the AirDrop button, and select Off to disable the feature. Don't be concerned about the notion of some pesky hacker trying to send you malicious content[md]in just a moment, you'll see that the user must approve any incoming content from another iDevice or Mac.