screen and authorizing payment transactions the latest smartphones use biometric data just how dependable and secure is this innovative technology. exists on the phone with an iris scan looks tough to accept this method as it s a stream. that can be a risk of strangers unlocking my phone and then accessing my data. from a. biometric data replacing passwords the first step in this direction was using a fingerprint when lots of phone bestselling phones like a samsung s eight and i phone ten take things a step further. instead of entering his pin a batch obama just held his some sun sh in front of his face a built in infrared camera systems his irises the data and then compared with a recorded image of his iris on a smartphone this unlocked. i use the scanner