Researchers have demonstrated how 3D printing could be used to clone fingerprints with an 80% success rate of bypassing biometric security of notable manufacturers.
To understand how they conducted these attacks, we need to look at a number of steps involved. Firstly is the collection of the fingerprints themselves which were done in multiple ways depending on different situations:
Direct collection in the scenario where the victim has no control over their body and their fingerprint can be taken from them without their consent.
Using a sensor that is found normally at airports when checking into immigration or during the boarding process.
Lifting the fingerprint from an object the victim touched. For example, one could use a glass someone laid their hands on to extract the fingerprint.
Once collected, the fingerprint is used to create a mold with the help of a 3D printer which is then finally cast on a variety of materials with the handiest being silicon and fabric glue.
An image of the molds after printing.
Yet the process was by no means easy. For example, elaborating on one of the issues faced, the researchers from Cisco Talos stated how:
..the resin used by a 3-D printer needs to be cured after the printing. The curing is mandatory to make the object solid and remove the toxicity of the resin.
…Due to this parameter, we need to print more ..
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