As data breaches, ransomware, andother cybercrimes heighten concerns about the security of doingbusiness on the Internet, some banks are rolling out biometricmethods of authentication, methods that rely on some uniquephysical characteristic of the customer, like a fingerprint.

Wells Fargo customers can now use a scan of the veins in theireye to log onto the mobile version of the bank's CommercialElectronic Office portal, CEO Mobile. And Barclays is about tolaunch a device that uses finger vein technology to authenticatecustomers signing into its treasury portal on a laptop ordesktop.

“We do think this is the way forward,” said Shameet Shah, headof digital client security for corporate banking at Barclays.“Within our space, security is paramount. You're protectingclients' accounts that have millions of dollars or pounds.”