iOS: 'Trust This Computer' alert
When you connect your iPhone, iPad, or iPod touch to a new computer or another device attempting to access the files of your iOS device, you’ll be asked to verify that you trust the connected device. Tapping Trust will allow this device to access files stored on your iOS device.
If your iOS device is passcode locked, you need to unlock the device before you're asked to trust the connected computer or device.
To trust a computer:
- Connect the computer or other device to your iOS device.
- If your iOS device is locked with a passcode, unlock it.
- Tap Trust.
- If you're about to sync the device with iTunes, click Accept.
The trusted computer or device can access the files and settings of your iOS device. A trusted computer can sync with your iOS device, import photos, access movies and videos, contacts, and other such content, until you disconnect. The data stored on your iOS device is not exposed before you enter your passcode (if enabled) and choose to trust the connected computer or device.
If you choose not to trust the connected computer, you can charge your device, but the connected computer won't be able to access any content on your device.
Note: If you select Trust, the computer will be trusted indefinitely. If you select Don't Trust, you will be asked if you want to trust that computer each time you connect your device to that computer.