Fingerprints, versus an effective "hash" code of the print created on-board
I immediately suspected that they probably didn't do it that way (emailing fingerprints around); so I looked it up.
"Touch ID Plus scans the employee’s finger and converts the scan into a mathematical representation - creating a finger scan template, which is then stored in an encoded format. As a result, it’s not possible to reproduce the original image..."
Yeah, that.