METHOD AND SYSTEM FOR IMPLEMENTING A DYNAMIC VERIFICATION VALUE

摘要

A method is disclosed, which includes receiving a message including an account identifier and a first verification value. The method uses the account identifier to select a dynamic verification value process from at least two dynamic verification value processes. Then, using the selected dynamic verification value process, a second verification value is determined. Next, the method determines if the first verification value and the second verification value match or are within an expected range.