My sister passed away recently, and after her passing, my other sister who has no resemblance to her is able to unlock her iPhone 11 Pro using Face ID. My late sister had not registered any additional face IDs on the device. This raises significant concerns about the security and reliability of Face ID. Can someone explain why this might be happening?
Hello~ Click on below and review the entire article as it explains fully. More about Face ID…
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 less than 1 in 1,000,000 with a single enrolled appearance whether or not you're wearing a mask. As an additional protection, Face ID allows only five unsuccessful match attempts before a passcode is required. The statistical probability is higher—and further increased if using Face ID with a mask—for twins and siblings that look like you, and among children under the age of 13, because their distinct facial features might not have fully developed. If you're concerned about this, we recommend using a passcode to authenticate. You can also use Face ID without enabling Face ID with a mask.
I can assure you *KiltedTim* doesn’t make offhanded comments that can’t be substantiated.
~Katana-San~
Hello~ Click on below and review the entire article as it explains fully. More about Face ID…
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 less than 1 in 1,000,000 with a single enrolled appearance whether or not you're wearing a mask. As an additional protection, Face ID allows only five unsuccessful match attempts before a passcode is required. The statistical probability is higher—and further increased if using Face ID with a mask—for twins and siblings that look like you, and among children under the age of 13, because their distinct facial features might not have fully developed. If you're concerned about this, we recommend using a passcode to authenticate. You can also use Face ID without enabling Face ID with a mask.
I can assure you *KiltedTim* doesn’t make offhanded comments that can’t be substantiated.
~Katana-San~
osmanfromislamabad wrote:
really? never heard of that before. i tried searching online too but didn’t find any similar cases. if what you are saying is true, that means it’s not really a security feature.
Face ID constantly updates to recognize the face when the Passcode is entered. The security problem is not due to Face ID, it is that the person knows the Passcode. There is no security when someone knows the Passcode. See the information here how Face ID adjusts its detection data when the Passcode is entered. The more that person uses the Passcode when Face ID failed, the more Face ID will adjust, since they are clearly authorized to unlock the device.
Face ID automatically adapts to changes in your appearance, such as wearing cosmetic makeup or growing facial hair. If there is a more significant change in your appearance, like shaving a full beard, Face ID confirms your identity by using your passcode before it updates your face data.
FaceID doesn’t key on how someone ‘looks’… It keys on the structure of the face and head. It is not uncommon for close blood relatives to be able to pass Face ID for each other.
osmanfromislamabad wrote:
really? never heard of that before. i tried searching online too but didn’t find any similar cases. if what you are saying is true, that means it’s not really a security feature.
Face ID biometrics are a shortcut means to avoid entering the passcode as often, and which allows longer and more complex passcodes be used.
Device security and data encryption is based on the passcode.
Not on Face ID.
Face ID is not a replacement for the passcode.
You have to know the passcode to even enable Face ID too, such as when an iPhone reboots, or at various other times.
Face ID can’t decrypt and can’t access the iPhone data. The passcode can. Once the passcode is entered, the access granted by the passcode is cached in a secure enclave location within iPhone and that cache then allows more of a user’s data to be accessible, and Face ID can then re-allow access to the device and its data using the cached permission.
After a reboot, the cache is gone and data is re-secured, and the passcode must be re-entered.
In Apple technical jargon (might want to skip the rest here!), this first state after rebooting an iPhone is called Before First Unlock (BFU). Once the iPhone is first unlocked with its passcode after a reboot, the iPhone is in After First Unlock (AFU).
Getting from BFU to AFU requires the passcode.
Once in AFU, Face ID will work, wireless networks and some other details will work, and more of the user’s data is accessible.
Getting from AFU back to BFU usually means a reboot, and the current iOS version will automatically reboot (and revert into BFU) when the iPhone is inactive for three days.
osmanfromislamabad wrote:
well the passcode is known to the whole family but faceID only works for one.
Y’all are going to have to work out which of you get the Face ID slots, and all of you can continue to use the passcode to access the device. All of you will need the passcode too, including whoever has Face ID access.
Or probably better, and within any legal will the family member may have had here, decide how to offload and share the photos and videos and content as appropriate, and then decide which one of you gets the iPhone, or y’all can sell it and split the profit, or whatever.
You will need the Apple Account credentials to reset ownership for the transfer or the sale.
What to do before you sell, give away, or trade in your iPhone or iPad - Apple Support
The new owner will get their own apps and photos, and will want their own new passcode.
Sharing a device or sharing an Apple Account can or will lead to issues and complaints, too. What amounts to a party line often does.
osmanfromislamabad wrote:
well the passcode is known to the whole family but faceID only works for one.
Change the passcode.
Face ID uses the TrueDepth camera to build a 3D model of the face. It uses over 30,000 points to build the model.
>>TrueDepth refers to front-facing cameras with a Dot projector in Apple devices that provide depth data in real time along with visual information. The system uses LEDs to project an irregular grid of over 30,000 infrared dots to record depth within a matter of milliseconds.[1]<<
https://apple.fandom.com/wiki/TrueDepth
https://en.wikipedia.org/wiki/Face_ID
I’d have to see it to believe it.
Face ID is considered much more secure than Fingerprint ID or Googles face recognition that just uses a photo to compare.
thanks for a good explanation, however it’s weird that despite all of us knowing the passcode, only one family member who is 12 years older to my deceased sister is able to unlock the phone using face ID. the phone has not been reset or rebooted at all.
Is it possible that your sister knows the passcode for the device?
yes she knows the passcode but she hasn’t changed the face ID setting.
If she knows the passcode, she has been basically been given permission to unlock the device, whether by passcode entry or face/fingerprint ID.
so my other family members also know the passcode but they can’t use faceID.
really? never heard of that before. i tried searching online too but didn’t find any similar cases. if what you are saying is true, that means it’s not really a security feature.
Hello~ Excellent explanation.
~Katana-San~
well the passcode is known to the whole family but faceID only works for one.
Reliability of Face ID
