If this video is proof that the iPhone Touch ID was cracked, then this video actually demonstrates that the Touch ID wasn't cracked at all.
If you know which finger to use and you know your own 4 digit pass code, have you really cracked the Touch ID?
The person used his own lifted fingerprint without restarting the phone; and he knew which fingerprint to use.
The Touch ID requires a 4 digit pass code after restarting.
Every fingerprint is unique, so it is rare that even a small section of two separate fingerprints are alike enough to register as a match for Touch ID. The probability of this happening is 1 in 50,000 for one enrolled finger. This is much better than the 1 in 10,000 odds of guessing a typical 4-digit passcode. Although some passcodes, like "1234", may be more easily guessed, there is no such thing as an easily guessable fingerprint pattern. Instead, the 1 in 50,000 probability means it requires trying up to 50,000 different fingerprints until potentially finding a random match. But Touch ID only allows five unsuccessful fingerprint match attempts before you must enter your passcode, and you cannot proceed until doing so.
To configure Touch ID, you must first set up a passcode. Touch ID is designed to minimize the input of your passcode; but your passcode will be needed for additional security validation, such as:
- After restarting your iPhone 5s
- When more than 48 hours have elapsed from the last time you unlocked your iPhone 5s
- To enter the Passcode & Fingerprint setting
Since security is only as secure as its weakest point, you can choose to increase the security of a 4-digit passcode by using a complex alphanumeric passcode. To do this, go to Settings > General > Passcode & Fingerprint and turn Simple Passcode off. This will allow you to create a longer, more complex passcode that is inherently more secure. Security is further strengthened by using a mixture of uppercase and lowercase letters, numbers, and symbols."
If Apple had never revealed how the Touch ID process worked, the individual would not have figured out that he can scan his own fingerprint, elevate the ridges onto a surface, place the surface on another finger, and then use the other finger's "living tissue" beneath the "fake epidermal fingerprint layer", to activate the Touch ID with his own 4-digit pass code.
The staged video simply demonstrates that the technology works as advertised, in that the scanner read the correct fingerprint pattern, and that the overlay was placed on the finger of a living person.
According to this article, the ONLY way a fingerprint pattern was replicated was with a DIRECT FINGER TO GLASS PLATE 2400 DPI HIGH RESOLUTION SCAN ON A FLATBED SCANNER.
Which means that he couldn't lift a fingerprint directly off of the iPhone 5s itself, because the light from the scanner would have refracted when coming into contact with the sapphire crystal glass.
In other words, take a mirror, and place a clear fingerprint on it, and scan the mirror.
Light reflected on itself would wash out the image the same way you photograph a white wall with flash.
The bottom line is that the individual didn't crack the Touch ID with his own fingerprint and 4 digit pass code; and he couldn't crack the Touch ID because the scanner worked as advertised.