* Strong Customer Authentication (SCA) is a new requirement of the second Payment Services Directive (PSD2), ... It will require banks to perform additional checks when consumers make payments to confirm their identity. To do this, banks may ask for a combination of two forms of identification at checkout. Examples include: Something they know (such as a password or PIN).*

[0] https://www.visa.co.uk/partner-with-us/payment-technology/st...