The video does not completely show a successful hack. In order for this hack to be 100 percent they need a good print of all ten fingers, and it still does not guarantee success. Let me explain:
1. I notice that IOS7 allow 5 attempts before asking you to enter your passcode.
2. If the phone is turned off (to stop GPS location or remote wipe) IOS7 will asked you for the pass code after power up.
Several interesting point about the technique used crate the fake finger print:
1. The print is scanned directly from the phone. It is not lifted. I assume this will provide the best print. There was only one perfectly placed print.
2. they used a PCB photo etching process to created a deeper "3d" mold of the print. A specialized skill set.
3. They use some sort of conductive paint to simulate human skin. Can you buy that anywhere?
4. In the video it look like the hacker took several attempts using the same fake print. So each miss scan would reduce from the maximum count.
Because of the maximum of 5 attempt permitted by IOS7 the hacker has a small window of opportunity, so each step must be exact because each miss step reduces the chance of success. The phone can't be turned off, just incase the user decide to remote wipe. So the video should include a Faraday cage just to be safe.
I only trained one finger and only on the tip where I do not use for grip. There should be multiple prints, one on top of another on my home button. That where a useful will be left. I am sure that some hacker will come up with a vision software to extract a good print sometime in the future. The rest of the prints on the phone should be useless.
So I have the hacker to thank for showing me the hack, so now I can use that information to guard against it. Keep up the good work!