President Biden wants banks to make customer data portable. The directive can be interpreted in many different ways and may prove easier said than done. The White House, as part of a broad executive order meant to promote competition across the U.S. economy, says it "encourages the Consumer Financial Protection Bureau to issue rules allowing customers to download their banking data and take it with them." The administration wants to "make it easier and cheaper" for consumers to take their business to rivals. How much of an effort this will require banks to make from a technology and business point of view will depend on the rules the CFPB writes. The agency could validate the current state of consumer data sharing in the U.S., in which aggregators pull data out of banks and give it to fintechs on behalf of consumers. Or it could require something new — actually letting consumers download their own data in a usable format onto a device or into an online storage account, or allowing customers to have their data sent from one bank to another.