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        Keeping up with the                                     will supplement its existing range of account numbers
                                                                (that now begin with the numeral 5), with a new range
        card brands – EMV                                       that begins with the numeral 2, to effectively double the
                                                                number of cards they can support.
        and beyond                                              This requires a software update for terminals or changes
                                                                to a BIN range configuration file or table. Some merchants
                                                                will require new hardware if their terminals are too old to
                                                                handle the software updates. Online payments sometimes
                                                                use an auto select feature based on the BIN so that the
                                                                customer doesn't have to enter the card brand; they will
                                                                need an update, as well. Mastercard set a deadline of
                                                                June 30, 2017, for merchants to be able to accept what it
                                                                has dubbed "2-series" cards, and has designed 2-series test
                                                                cards to validate terminals for compliance.

                                                                To spur compliance, Mastercard stated that an acquirer
                                                                may be subject to monthly fines for noncompliance, which
                                                                could amount to $100 per event for a small merchant. The
                                                                new cards will be issued this summer.
                                                                Eight-digit BINs

                                                                Payment processors have typically centered their Payment
                                                                Card Industry (PCI) Data Security Standard (DSS)
        By Brandes Elitch                                       compliance strategy on using PAN truncation to render
        CrossCheck Inc.                                         cardholder data unreadable. PAN truncation keeps the
                                                                first six and the last four digits, and destroys six digits,
                 he EMV (Europay, Mastercard and Visa) data     so an attacker has a 1 in 100,000 chance of guessing the
                 transmission  protocol  has  received  significant   original PAN. The proposal for an eight-digit BIN will
                 press  over  the  last  year,  but  the  fight  against   change these rules.
        T payment card fraud is just beginning.  An
        October 2016 article in The Nilson Report projects that card   The possibility of an eight-digit BIN and a 16-digit PAN
        fraud will grow 42 percent in the next three years, and   could impact the software on every terminal, merchant
        worldwide, fraud losses will approach $31 billion.      website, processor and card processing network.

        Problems include the delay of gas station EMV adoption,   The prospect of eight-digit BINs raises significant issues
        card skimming, data breaches, systemic problems with    for back-end systems, analytics, databases and reporting
        Card Verification Value numbers for online purchases,   systems, and the cost of changing payment terminals
        and "fallback fraud" occurring when an EMV transaction   would be meaningful. The International Organization for
        is processed via a mag stripe.                          Standardization (ISO) has a working group studying the
                                                                expansion of BIN numbers, and has suggested a move to
        Members of the Electronic Transactions Association have   eight-digit BINs.
        been busy coming up with new ways to control fraud and
        manage the enormous growth in cards. The American       Currently, the six-digit BIN has two open slots (positions
        Bankers Association reported that new credit card       seven  and  eight)  for  customer  relationship  management
        accounts are up 8.8 percent year over year, and the total   data about cardholders and their transactions. This would
        number of open card accounts is now 357 million.        be lost, which would engender a major reengineering that
                                                                would create system-wide implementation challenges.
        This article discusses several developments you will be
        hearing more about later this year.                     The real problem is the way that card numbers are
                                                                allocated and the fact that the existing BIN ranges are not
        Mastercard 2-series BINs                                being fully utilized. Currently, there are no immediate
        The bank identification number (BIN) is the first six   plans to adopt eight-digit BINs.
        characters of a card number, also called a primary account   Payment Account Reference
        number  (PAN).  The  card  brands  have  seen  increased
        demand for cards due to tokenization, mobile wallets,   When a merchant accepts a transaction that has been key-
        replacement account numbers and prepaid cards. Each     entered, swiped, or that is part of an ecommerce/card-not-
        card brand has devised a proprietary solution. Mastercard   present sale and then converts it to a token, the token needs

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