Challenge of biometric security for banks

Biometric authentication has become widely used for payment authorisation and identity verification across a range of banking activities. Fingerprint authentication is already well-established, while a growing number of leading retail banks – including Barclays, HSBC and Santander – also now give customers the option of using voice ID rather than having to remember a series of letters and numbers to access their banking services, both online or over the phone. New banks, including Monzo and Starling, are even pioneering the use of video selfies as a way of proving your identity when signing up for an account.