Re:Quick Tip: Enable Touch ID for Sudo (2020)
by shaftway on Wednesday June 15, 2022 @12:49PM
(#31755723)
Most fingerprint sensors that look for a pulse can be fooled by a gummy bear that has been sliced thin enough to allow the pulse to pass through, but thick enough for the ridges to be picked up. Think about something around a millimeter thick.
Re:Quick Tip: Enable Touch ID for Sudo (2020)
by airstrike on Wednesday June 15, 2022 @12:06PM
(#31755107)
> A gummy bear may be lifelike, but normally lacks a beating heart and circulatory system.
“Normally”?
Re:Quick Tip: Enable Touch ID for Sudo (2020)
by eyelidlessness on Wednesday June 15, 2022 @09:36PM
(#31761633)
Sure, everyone says they want humanely sourced gummy worms. But there’s still a niche market for that fresh worm with the gummy goo still coagulating.
Re:Quick Tip: Enable Touch ID for Sudo (2020)
by ThePowerOfFuet on Thursday June 16, 2022 @12:16PM
(#31767775)
If this is the case, why does Touch ID unlock a device in less time than the gap between heartbeats?
The biometric system (sensor + algorithm) used by Apple, as well as other competitive biometric vendors, detect blood flow, pulse in the finger. This is done as a mitigation against fake fingers as well as the (always presented) gory "cut off the finger" attack scenario.
A gummy bear may be lifelike, but normally lacks a beating heart and circulatory system.