How old is older? - faceid can have issues with young siblings, and of course identical twins.
Boy is 13, his sister is 17. They have different noses.
I should hope. Sharing noses would come with great difficulties.
My friends son can unlock his older sister's iPhone using Face ID. Rare?
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Re: My friends son can unlock his older sister's iPhone using Face ID. Rare?
#12Not rare. Approximately 80% of people have a brother or sister. On average siblings are less than three years apart, and share 50% of their genes. Children from the same parents tend to look alike. Apple has researched this: > The probability that a random person in the population could look at your iPhone X and unlock it using Face ID is approximately 1 in 1,000,000 (versus 1 in 50,000 for Touch ID). […] The probabi…
The very last people I would want to expose my secrets to, would be family members. Whereas if a stranger hacked into my phone, beyond those secrets that have some fixed frame of reference, such as Bank Details and Social Security Number etc, a lot of other information is context-less and therefore hard to determine whether it has value. Siblings on the other hand would know the value immediately; "you sent [x] to person [y]", 'you said [z] about [a]".
Re: My friends son can unlock his older sister's iPhone using Face ID. Rare?
#13Not Face ID, but my wife’s sister could unlock my wife’s android phone with Touch ID. That should be pretty rare I guess.
Re: My friends son can unlock his older sister's iPhone using Face ID. Rare?
#14Not Face ID, but my wife’s sister could unlock my wife’s android phone with Touch ID. That should be pretty rare I guess.
That is very rare. Android should employ your wife and her sister as Touch ID edge cases.
Re: My friends son can unlock his older sister's iPhone using Face ID. Rare?
#15How old is older? - faceid can have issues with young siblings, and of course identical twins.
Boy is 13, his sister is 17. They have different noses.
I realized another thing that can happen is that if you have two sufficiently similar looking people. Basically person B tries to use their face to unlock A’s phone and then A unlocks it.
If they are sufficiently similar the phone could theoretically expand its knowledge of what A looks like so that B’s face triggers a positive match.
I have no idea how close in appearance they’d need to be for Faceid to do this though.
Re: My friends son can unlock his older sister's iPhone using Face ID. Rare?
#16My brother was able to unlock mine through Face ID even though my phone had only one face registered.
Face ID updates you face as it changes[0]. So, I guess whenever my brother used my phone it added my brother's face features since algorithm probably found some similarities in face features.
[0] https://www.theverge.com/2017/9/27/16373710/face-id-iphone-x...
Re: My friends son can unlock his older sister's iPhone using Face ID. Rare?
#17Not rare. Approximately 80% of people have a brother or sister. On average siblings are less than three years apart, and share 50% of their genes. Children from the same parents tend to look alike. Apple has researched this: > The probability that a random person in the population could look at your iPhone X and unlock it using Face ID is approximately 1 in 1,000,000 (versus 1 in 50,000 for Touch ID). […] The probabi…
The very last people I would want to expose my secrets to, would be family members. Whereas if a stranger hacked into my phone, beyond those secrets that have some fixed frame of reference, such as Bank Details and Social Security Number etc, a lot of other information is context-less and therefore hard to determine whether it has value. Siblings on the other hand would know the value immediately; "you sent [x] to pe…
Use a PIN or passcode instead of Face ID.