A lawsuit that will soon commence in Arizona has the potential to alter the data breach liability landscape by making data security auditors liable for data breaches experienced by the companies they audit.  The case, Merrick Bank Corp. v. Savvis Inc., has its origins in events that began in 2003, when Merrick Bank (“Merrick”) offered to hire CardSystems Solutions (“CardSystems”) to process credit card transactions for its merchant customers.  The offer was contingent upon CardSystems achieving certification under VISA’s Cardholder Information Security Program (“CISP”), which is the predecessor to the Payment Card Industry Data Security Standard (“PCI DSS”).  Savvis audited CardSystems in 2004 and found that it had “implemented sufficient security solutions” and followed “industry best practices.”  VISA certified CardSystems shortly after receiving Savvis’ audit report.  In 2005, CardSystems revealed that it had experienced an information security breach that compromised forty million payment cards.
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