2011/04/21

Tokenization

For several reasons, the acquirers and banks in the part of the world that I live in have not seriously gone after the web merchants to make them become PCI compliant. I guess that PCI is one of those topics that everyone hates. I believe that for merchants in particular, the subject must really be viewed as a major nuisance.

The word is out, though, that Visa is getting stricter and that there's going to be a fury of activity. Well, it was about time. I'm not a supporter of PCI just for the sake of PCI. But if you think about it, Visa is doing the merchants and the acquirers a favor. Security holes and procedural gaps that could potentially hurt the merchant and the acquirer will be assessed and addressed and that's a good thing. A security breach can be serious enough to close you down. Even if you put monetary losses aside, a breach can generate enough negative publicity to put you out of business.

One way to minimize the scope of PCI is to introduce tokenization. Web merchants that use this technology can get to a point where no sensitive data ever gets into their systems, regardless of what those systems are. Only a card token and possibly a transaction token are stored. This information, if stolen or intercepted, is useless to a data thief and cannot be used to send fraudulent transactions from some other part of the world.

There obviously need to be changes in the authorization flow if tokenization is to be introduced. For the acquirer the exercise is not exactly straightforward. Tokenization is not the typical service that acquirers provide to their merchants, at least not at this point in time. For banks that provide acquiring services to web merchants (and hence have smaller numbers of e-commerce transactions), the economics of the business case are even trickier. This is the reason why there are service providers with offerings that are centered mostly around tokenization and data security.

As payment systems continue to evolve, they will doubtlessly include tokenization as part of the standard transaction flow and the window of opportunity for tokenization service providers will close. Securing the authorization process with card and transaction token will be the first step. Handling recurring payments is somewhat trickier and could be a batch-based process but eventually payment systems will provide a solution for that business need as part of their standard out-of-the-box packaging as well.

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