Touch ID Protection System Of The iPhone 5S Can Be Fooled

On September 23, 2013

One of the Features presented in the recently launched iPhone 5S phone is the ID Touch fingerprint reader sensor, Apple in an effort to provide an alternative method of authentication so far, they used a superior to similar implementations by other manufacturers. It did not take too long however until the new Touch ID proved to be vulnerable to the same trick used before.


Chaos Computer Club published a short video clip showing the used method, it is only a reiterative copying of a footprint methods and achieving a cast. As noted, the fat from the fingerprints can be retrieved from shiny objects such as glass, gloss or polished metal surfaces by classical methods such as powder coating and reactive dye like the famous Superglue glue.

After achieving a clear footprint, it can be photographed or listed on an adhesive transparent film and scanned at 2400 dpi. The next step is to reverse the image, print it on celluloid with a laser printer with a resolution of 1200 dpi to get a true relief and cover it with Latex.

Cut to size and slightly damp for being conductive, the obtaind piece can now be used to unlock the fingerprint sensor. The method is similar to those used so far to unlock the sensors present on laptops or phones like the Motorola Atrix, and shows both the vulnerability of a system that uses identifiers that are basically left all around and the minimum difference between Apple sensor and products already available on the market.