Interesting, but required a bit of Mission Impossible trickery to make it work.

The CCC started by photographing a fingerprint with 2400 dpi. Next the image was inverted and laser printed at 1200 dpi. To create the fingerprint mask Starbug finally used, latex milk was poured into the pattern, eventually lifted, breathed on (for moisture), and pushed onto the sensor to unlock the phone. In this sense, it’s hard to definitively state the hackers “broke” the TouchID precautions, because they did not circumvent the security measure without access to the fingerprint.

This does raise a fair question, though. How usable are the fingerprints we regularly leave on our phones? How susceptible is the iPhone 5s to this technique?