Samsung details the iris scanner and security options on the Note 7

Just as we thought, the iris scanning technology used by Samsung in the new Galaxy Note 7 is of the more sophisticated and much faster type that uses a combo of near-IR LED emitter and an iris camera, as opposed to only using the selfie cam and some software to get a lock on your eyes. Samsung says that this is a technology it has had for years in the making, and it might indeed be so, given that we first heard about the possible introduction of an iris recognition tech way back when the S5 was still on the drawing board.

Well, after releasing the Galaxy Tab Iris for the Indian government, the Note 7 is now the second Samsung device with the technology, and its first phone. Needless to say, Samsung has a few cool infographics to tell you how it all works. 

The most important part of the memo, however, is that your iris scans are coded in a digital format and scrambled, so nobody can get a hold on anything that will be of any use to them by hacking or stealing your phone, just the way it is with the finger scans. Thus, feel free to use it with Samsung's new Secret folder that can store all the media, docs, mails, apps and contacts you wan't to keep from prying eyes.

source: Samsung