Research by Associate Professor Romit Roy Choudhury and graduate students Sanorita Dey and Nirupam Roy has demonstrated that these fingerprints exist within smartphone sensors, Sanorita Dey, Associate Professor Romit Roy Chourdhury, and Nirupam Roy. Sanorita Dey, Associate Professor Romit Roy Chourdhury, and Nirupam Roy.
mainly because of imperfections during the hardware manufacturing process.