Bloomberg's Paige Smith joins Scarlet Fu and Tim Stenovec on "Bloomberg Crypto." Walmart is one of the last remaining merchants that's been able to hold out against the swell of Apple Pay in recent years. Now, it's pushing a fledgling alternative to its huge trove of customers and employees. (Source: Bloomberg)

Backed by the retailer and Ribbit Capital, OnePay is reaching beyond its initial customer base to take on banks.