"Fintech" companies — those that use technology to bring financial products and services to the masses — have been growing in popularity across the globe as a potential solution to many of the problems plaguing legacy financial institutions. For example, as banks continue to close branches and service centers move online, fintechs emerge with simple solutions such as online and mobile banking, and often times lower associated fees. Fintechs are also emerging as a potential solution for the world's under-banked populations. Worldwide, about 2 billion adults remain unbanked (without access to formal financial institutions) and another 1 billion individuals lack even basic access to such services like savings accounts or credit cards. Fintechs are leveraging technology to provide access not only to the basics, but also unique services. For instance, mobile payments can be especially useful to people who lack access to physical bank branches for depositing or withdrawing cash.