Hello, I have a twin brother and when he takes on my phone using face Id, he can easily do it. How in this case it is possible to speak about the safety of face Id?
iPhone 11 Pro Max, iOS 13
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.
Apple did warn you about this!
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.
Apple did warn you about this!
Turn off Face ID and just use a passcode.
Twins and young children are one area where all current facial biometrics tend to fail, even the most advanced systems. But on average, as stated in Apple’s document, excluding twins and children, the odds that any given person will sufficiently match your FaceID is about one in a million. With touchID the odds are about one in fifty thousand.
In part this is because the newer devices with FaceID can crunch a much more complex algorithm for encoding the facial biometrics so bases the FaceID on a lot more data than TouchID uses. But when faces become much more similar as with twins, there isn’t enough data available for a biometric method to reliably make a distinction.
Tech news reports Apple is working on enhancements such as subepidermal imaging to incorporate maps of small blood vessels just under the skin as an additional distinguishing feature (those reports are based on recent patent filings). So FaceID will probably get more refined as time goes by - but more data in the algorithm also means CPU’s and hardware has to keep pace to deal with all the data behind the security methods as they get more complicated.
Well, this can't be changed. Bring the iPhone back to Apple if you do not like it.
OK. Then why say that unlocking is safer than using a fingerprint?
This relates to random people, because the possibilities that a stranger’s finger print will match is higher than his face will match yours.
Not for that I paid that amount of money for the functionality, then to disable it.
Thanks for the advice.
Safety with face id makes no difference when having a twin brother.
