This is enough to bypass maximum protection in almost 10% of cases
Fingerprints can be recreated by the sound a finger makes when swiping across a smartphone screen. This is exactly what the article of a group of researchers from China and the USA is devoted to.
The PrintListener method is technically, of course, very difficult, but the important thing is that it is implementable and tested in practice. Moreover, it does not require any special microphone or special finger movements. An ordinary smartphone and an application with an activated microphone are enough. For example, Discord, Skype, WeChat, FaceTime and so on. At the same time, it’s enough to simply use a smartphone.
Of course, the device must have the appropriate software, or the very application that the person will use must be configured accordingly.
As stated in the paper, Printlistener can attack up to 26.5% of partial fingerprints and 9.3% of full fingerprints within five attempts at the highest FAR setting (0.01%). Apparently, this means that this method can obtain enough fingerprint data to pass the full fingerprint security check 9.3% of the time, given five attempts.