TSB to be first bank in Europe to introduce iris-scanning technology

TSB is introducing iris recognition technology to its mobile app in September - though it will only be available to users with a Samsung Galaxy S8.

Samsung Galaxy S8: includes iris-scanning technology
Samsung Galaxy S8: includes iris-scanning technology

The function allows users to log in to their account by looking at the phone.

TSB's chief information officer Carlos Abarca told the BBC it was the most secure form of biometric authentication currently available.

Abarca said: "It takes advantage of 266 different characteristics, compared with 40 for fingerprints.

"It's extremely fast – it takes less than a second to get in – and the gesture is very natural. And you don't have to remember secret numbers or passwords."

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