Payment tokens of any kind are a method to obscure the card number (PAN) and ensure data for both cardholders and merchants.  Processor tokens provide this security by removing the need to store PAN, but they can only be used at that processor.  Network tokens are issued by the Card Networks (Visa, MasterCard, Amex, Discover) and in many cases provide a discount for using this token.  Note that PINless debit routing and various other payment optimization features become unavailable if you STRICTLY use Network tokens.  This is another reason why Revolv3’s platform is so valuable.