Reasons why you don't have to be afraid of your iPhone's Face ID (Life Hacker [Japanese Edition]) --Yahoo! News
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16コメント16件Why you don't have to be afraid of your iPhone's face ID
You can see that recent major tech companies become suspicious. Today, let's focus on a certain technology. Apple's Face ID (face authentication). This technology is 100 % safe no matter who you say, and it is nothing more than strengthening your iPhone security. If you are used to fingerprint authentication or a smartphone that unlocks only with a password, you may be worried that your smartphone will scan your face. While facial authentication and smartphone tracking safety are discussed, some people may find it a bit dangerous to allow access to the important information of the face. But Apple is not an Aria Stark (a warrior in the TV drama Game of Slones). You don't see your Face ID information. Not only that, Face ID does not take your face photo. If you can see what kind of information the iPhone is using to enable the Face ID, you'll see that it's just a number that can't be identified.
Why is Face ID so safe?
When setting a Face ID first, the iPhone TrueDepth camera releases 30,000 invisible dots and scan your face. As I have already explained, I don't take your face photo with a camera. Instead, get information from all invisible dots and convert it to "mathematical data". You, I and Apple, cannot understand the data just by looking at it. Then the data is encrypted and stored in your iPhone, called "Secure Enclave". This Secure Enclave is the key. The encrypted Face ID information never goes out of your iPhone. Even if you take a backup, it will not be uploaded to iCloud and will not be sent to any Apple server. Just remaining inside your iPhone will never go outside. Since the data is encrypted, only your iPhone can read that data. You cannot read the "mathematical data" on any other device. Therefore, for companies like Apple, it is useless to get that data in the first place.
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