Читать книгу iPhone For Dummies - Bob LeVitus - Страница 35

Face ID debuted on the iPhone X and has been on all but the newest version of the SE models ever since. Using this clever technology, we've found that Apple’s facial recognition technology can determine that you are who you say you are, even in pitch black and even if you change your look by adding or removing facial hair, putting on sunglasses, donning a hat, and so on. Given the times, we’re obliged to mention that wearing a mask may defeat Face ID.

You set up Face ID here during the setup process on your phone. The phone instructs you to position your face in a camera frame and then move your head in a circular fashion so that the outline of the frame turns green, as shown in Figure 2-1. Repeat the setup drill we just described. That’s it. The entire process shouldn’t take more than 15 seconds.

Want to redo it later? Tap Settings ⇒ Face ID & Passcode, and enter your current passcode. Then tap Reset Face ID ⇒ Set Up Face ID. You can also set up an alternate appearance in Face ID, which could come in handy if you share a device with a family member.

Two more Face ID settings are worth noting. The first is the Require Attention for Face ID switch. When enabled, you need to be looking at the display before the phone unlocks, which might prevent your kids from getting past the Lock screen while you’re sleeping by pointing the phone at your face. The second is an Attention Aware Features switch, in which the TrueDepth camera on your phone checks for your attention before dimming the display or lowering the volume of alerts.

FIGURE 2-1: Face it: Face ID keeps your iPhone secure.

As with Touch ID, whether you choose to set up facial authentication now or later, you need to create a passcode. And you will need to type that passcode when you first power up a phone that has been turned off.