The new machines are due to be rolled out at an initial 100 locations from October, but users will be warned against covering their faces, as that will interfere with the software and prevent them accessing their accounts, Seoul's Chosun Ilbo newspaper reports . South Korea's Financial Supervisory Service says the first machines will be installed at locations where there have been frequent reports of fraud and theft, but that eventually they'll be used across the country. Cameras built into the machines will attempt to confirm the identity of the user, and will halt the transaction if it fails, Chosun Ilbo says.