FaceID Multiple Users

Discussion in 'iPhone' started by marty1980, Sep 27, 2017.

  1. marty1980 macrumors 6502

    Apr 22, 2011
    I read the security features for FaceID and the biggest issue I see for me is how it handles "changes to your face." It says if you change your face (shave thick beard off), FaceID will require a pin and then it will update your FaceID imprint.

    I often allow my family and friends to use my pin to get into my phone for various reasons. I've been begging for guest mode or multi-user support in iOS for many years, but I've at least always had an easy time either registering a new fingerprint for my wife or giving out my pin to people I trust.

    I wonder if I can register multiple faces, so my wife can access my phone. I wonder if someone is accessing my phone with my pin, if FaceID will then register that person's face and mine will no longer work until I login with my pin.

    I really wish TouchID was on the power button or back of the X, but since it's not there for backup when FaceID fails, I am trying to understand how FaceID will fit into my lifestyle.

    Does anyone else have others who access your phone?
    How would you want FaceID to handle multiple users?
  2. joeblow7777 macrumors 603

    Sep 7, 2010
    I read somewhere that for the time being at least you can only register one face, but you can always just give your pin to anyone you want to grant access to.
  3. mwhals macrumors 6502


    Sep 16, 2012
    Apple allows only one face ID per phone. You will have to setup a pin and give it to those you allow to use your phone.
  4. C DM macrumors Sandy Bridge

    Oct 17, 2011
    FaceID: multiple faces? (like multiple fingers for TouchID)
  5. marty1980 thread starter macrumors 6502

    Apr 22, 2011
    Ok, but what about the feature where if someone enters your pin, it might update FaceID for that person and require you to redo your face print next time you login?
  6. C DM macrumors Sandy Bridge

    Oct 17, 2011
    If a person has access to your PIN then that person has access to your device and to do things on your device. They can change your PIN or do various other types of things. Pretty much always been like that.
  7. Newtons Apple macrumors Core

    Newtons Apple

    Mar 12, 2014
    Jacksonville, Florida
    I find it is not a good idea to hand your phone to other people with your security code.
  8. deadworlds macrumors 65816


    Jun 15, 2007
    Citrus Heights,CA
    Where are you get the information that entering your pin updates the faceID stored on the phone? I know Apple mentioned at the keynote that faceID adapts to your face as your face changes. But your face changes at a slow rate, not overnight. I think that faceID will be able to see these slow changes and Therefore adapt to your face.

    If there’s an article to your statement about FaceID updating when you use your pin, I’d like to see it.
  9. N54TT macrumors regular

    Nov 6, 2013


    From the document......”Conversely, if Face ID fails to recognize you, but the match quality is higher than a certain threshold and you immediately follow the failure by entering your passcode, Face ID takes another capture and augments its enrolled Face ID data with the newly calculated mathematical representation.”
    So unless the other person entering your pin has similar facial features....I don’t think it’ll pass the “threshold”.
  10. joeblow7777 macrumors 603

    Sep 7, 2010
    I imagine it's like TouchID. The person would have to deliberately go into the settings and change the authorized face. It doesn't just take the face of anyone who's punched in the PIN and replace the old one.
    --- Post Merged, Sep 27, 2017 ---
    He's talking about trusted people like his wife. I'm more surprised by all the people who feel that they can't trust their partner with access to their phone.
  11. marty1980 thread starter macrumors 6502

    Apr 22, 2011

    --- Post Merged, Sep 28, 2017 ---
    I suppose it will have to be silimar enough in appearance to want to change FaceID. If it updates automatically, it concerned me that it might do so when someone other than me unlocks the phone with my pin. This causing an annoying cycle of reconfiguring FaceID. I just hope it works well enough not to cause these headaches.
  12. maflynn Moderator


    Staff Member

    May 3, 2009
    I let me kids use my phone, and while I agree not letting "people", my kids are not people :p
  13. HEK macrumors 68040


    Sep 24, 2013
    US Eastern time zone
    Judging from your avatar, I tend to agree, your offspring are not people.:D Or is that just a mask?
  14. DNichter macrumors G3


    Apr 27, 2015
    Philadelphia, PA
    You can't register multiple faces, but you could give them your passcode.

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13 September 27, 2017