A conference call held Monday by payment processing vendor Global Payments Inc. to explain a computer intrusion that exposed data on at least 1.5 million credit and debit card holders, left unanswered questions about the breach.
The Atlanta-based company, which processes payment card transactions for thousands of merchants, first reported the compromise Friday when it released a brief statement saying that intruders had gained access to a portion of its processing system. It later updated the statement to say that data belonging to about 1.5 million cardholders, had been "exported" from its systems.
The company's disclosures came after the Wall Street Journal on Friday identified Global Payments as the victim of a major data breach. The breach was originally reported by security blogger Brian Krebs. Krebs' report did not name Global Payments and was based on an internal alert from Visa and MasterCard warning card-issuing banks about a breach at an undisclosed payment processor involving about 10 million debit and credit cards.
In a conference call with investors, Global Payments Chairman and CEO Paul Garcia said the data theft was confined to the company's North American processing system. The breach did not involve any merchant systems or systems belonging to sales partners, he said.
"Neither merchant systems, nor point-of-sale devices were involved in any way," Garcia said, according to a transcript of Monday's call.
"Importantly, investigation to-date has revealed that the theft involved Track 2 card data only. We do not believe, Track 1 card data was taken or that cardholder names, addresses, Social Security numbers for consumer banking information was obtained by the criminals," Garcia said repeating the company's earlier statement on the breach. Based on an investigation of the intrusion, "we believe that this incident is contained," he said.
The company's description of the breach leaves some questions unanswered, said Avivah Litan, an analyst with Gartner Inc. "It seems obvious that they were breached ... but they didn't come out and say it straight," Litan said. "All they said is what was not involved. That's the mystery here."
There also appears to be a discrepancy between Global Payments' description of the data that was compromised and the description by MasterCard and Visa. According to the alert sent out by the credit card companies to card-issuers, the compromised data included both Track 1 data, which includes personally identifiable information such as the cardholder's name and account number, and Track 2 data, which involves information such as the card's expiration date and the account number. However, Global Payments has insisted that only Track 2 data was compromised in the breach.
"This discrepancy just raises more questions. We still don't have all the information here," Litan said.
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