The virtual "accessory" that stores your payment information and passwords.
It's just a database account, securely...secured. Passwords. Double Dutch Bus checking. Apple Wallet. Android Pay. PayPal. Venmo. Basically, you link up a digital wallet to your bank account, so that when you need to make a purchase, you...can. Easily.
You know that guy swiping his phone ahead of you in line at Starbucks, and then getting his latte without handing over cash or a credit card? Yeah, he doesn't own the place. He just has a digital wallet.