The start-up payment processing firm Paay that promotes itself as providing extra security to online transactions called that claim into question when it misconfigured a payment card database, exposing 2.5 million credit card transactions and raising concerns over PCI compliance.

New York-based Paay was exposed by security researcher Anurag Sen who found transaction information that included credit card numbers, expiration dates and amounts spent dating back to Sept. 1, according to a TechCrunch report. Paay trades on its use of 3-D Secure, an XML-based protocol that is designed to be an additional security layer for online credit and debit card transactions.

Ilia Kolochenko, founder and CEO of ImmuniWeb, pondered the idea that the chaos created by COVID-19 may have played a role by distracting the staff, but contended legal authorities likely would not forgive the mistake if they find Paay didn't meet the PCI standard.

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