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Jonathan Cooper8,145 Points
Why would you "disable fingerprint authentication..." on mobile devices?
In the video it says to disable the fingerprint authentication. I thought that was a security feature. Not sure if I understood that correctly.
Steven Parker228,978 Points
You're right that this feature would be one way of securing access to the mobile device itself. But I believe the suggestion being made here is more about securing your identity in cases where the device or the data inside it may be stolen.
Identity-based security can be good for permanently-installed systems, but using it in a mobile device creates potential opportunities for identity theft.
Greg StromireTreehouse Guest Teacher
Good question, and my apologies for not making this more clear! Good responses too.
My intention was to convey that there are certain security properties about fingerprint authentication that we should keep in mind -- such as unintentional authorization.
This could be as simple as a child getting their sleeping parent's fingerprint to approve an app purchase.
It's also true that, as far as I know, it's legal for law enforcement in some countries (like the US) to force a person to use their fingerprint to unlock a device, where it is not legal to force a person to reveal a pass code.
These are all things to keep in mind when using these kinds of security features.