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iPhone 12 Pro unlocks if twin brothers try to unlock with face id

I have registered my Face ID to unlock my iPhone12 pro. Even though my twin brother had not registered his Face ID in my mobile. He is able to successfully unlock it.

is it expected??

iPhone 12 Pro

Posted on Oct 23, 2021 7:48 AM

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Posted on Oct 23, 2021 7:53 AM

About Face ID advanced technology - Apple Support

The probability that a random person in the population could look at your iPhone or iPad Pro and unlock it using Face ID is approximately 1 in 1,000,000 with a single enrolled appearance. As an additional protection, Face ID allows only five unsuccessful match attempts before a passcode is required. The statistical probability is different for twins and siblings that look like you and among children under the age of 13, because their distinct facial features may not have fully developed. If you're concerned about this, we recommend using a passcode to authenticate.

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Question marked as Best reply

Oct 23, 2021 7:53 AM in response to kondurumahesh

About Face ID advanced technology - Apple Support

The probability that a random person in the population could look at your iPhone or iPad Pro and unlock it using Face ID is approximately 1 in 1,000,000 with a single enrolled appearance. As an additional protection, Face ID allows only five unsuccessful match attempts before a passcode is required. The statistical probability is different for twins and siblings that look like you and among children under the age of 13, because their distinct facial features may not have fully developed. If you're concerned about this, we recommend using a passcode to authenticate.

iPhone 12 Pro unlocks if twin brothers try to unlock with face id

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