Samsung doubles down on security with iris scanner in Galaxy Note 7

Samsung's new Galaxy Note 7 comes with all of the features that the Note smartphone line is known for. It has a large display, works with the S Pen stylus, and is water resistant. But it also has another, long-rumored feature that is slowly finding its way into more consumer electronics: an iris scanner.
The Galaxy Note 7 uses both an IR camera module and a proximity sensor to recognize when its owner is holding the phone up to his or her face (from 25 to 35 centimeters, or about a foot away). T