If you haven't heard yet, Cupertino just launched a digital wallet called Apple Pay that randomizes your credit cards' numbers. The one responsible for generating those fake numbers for Visa cards in particular, is Visa itself, through its new Token service, which the world's largest credit and debit card company has announced right after Apple's big reveal. These "tokens" are random numbers not associated with your name or real card numbers. You can use them to purchase anything online or by using mobile to pay via contactless payment systems in brick-and-mortar stores. Visa's system can even generate different tokens for each merchant, device or type of purchase, if you want to be even more secure.