Mohammad Al Faruque, the director of UCI’s Advanced Integrated Cyber-Physical Systems Lab, led the team which showed that a simple device, such as a smartphone, can capture acoustic signals that carry information about the precise movements of the printer’s nozzle. These recordings can then be used to reverse engineer whatever object is being printed and re-create it somewhere else. Basically, this poses a huge security risk due to how easily detailed and confidential processes can be deciphered using common, everyday gadgets.