So much for the whole "it scans under your skin" explanation.
Based on what I've read, the "it scans under your skin" is both true, and *widely* misunderstood.
The layer 'scanned' by the capacitive sensor is, indeed, under the skin. However, it is not so far 'under the skin' that the shapes differ significantly from the surface, and it doesn't do some uber-high-tech cellular scan or anything. What the 'under the skin' 'scan' buys isn't extra security, it's resilience to surface skin damage (such as paper cuts).
Decent fingerprint readers these days do some 'life checks' which include a capacitive requirement similar to a human finger, temperature readings, and possibly even pulse-detection. These can all be 'faked' by making sure the print overlay is thin enough to pass through your own natural capabilities, but thick enough that it won't read your own print behind the fake.
It would be interesting to find out if folks who don't have visible fingerprints (due to any number of reasons) might actually still have the underlying structures in a form detectable by these scanners. I'll have to check with my M-i-L if she upgrades to a 5s, she's lost her fingerprints to 50+ years of playing guitar.
Biometrics are useless for security against a determined attacker. They are marginally useful for identification ("Hi, I'm Bob."), but worthless for authentication ("And I can prove it.") precisely because they can be 'faked' relatively easily, *and* can't be changed once they are compromised.
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How is a 2400 DPI photograph of someones fingerprint an everyday item? I'm sorry but this is click bait pure and simple.
Because it's pretty easy to lift a print off of a smooth glass surface, and those are found on pretty much every smart phone today. It's still a labor-intensive process, and won't be a worry when you're discussing casual snooping, or basic theft. From a security stand point, TouchID is a step forward from, "swipe to unlock", and about on par with the basic 4-digit PIN (but it's much more convenient, so more people will bother, so it's still a net 'win' there).
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So everything needed here
is considered "everyday items?" So they are assuming everyone is MacGyver?
They're not the sort of thing that everyone would be carrying around *on* them, but they're certainly not unusual things for someone to have easy (and unrestricted) access to.
If I wanted to do this, the only thing I'd need to go out and buy would be the the latex milk or wood glue to fill in the mold. (And that assumes I don't have an old bottle of wood glue floating around the garage somewhere that's still liquid.)
On the other hand, it's a process that's going to take a while unless you're well-practiced at doing it. (15-20 minutes for a 'pro', and probably upwards of 2 hours for a novice to actually get it right)
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Jesus, the phone is reading the print through the clear film through to the actual finger.
Show us a break-in with just a photo or the print on paper or whatever.
This one USES THE PERSON'S ACTUAL FINGER.
Not sure why this isn't completely obvious?
This one uses a *different* finger, behind the 'copy' of the *registered* fingerprint. The copied print provides the pattern. The finger behind it provides the capacitance, heat, etc. necessary to convince the sensor that the print belongs to a live finger. There are ways to use the faked fingerprint with a non-finger to get those effects, but why would you bother when just putting your finger behind the faked print is so much easier and more convenient? (A very carefully temperature regulated hot dog has been shown to work with similar systems in the past.)