Interpol said on Monday that it had helped co-ordinate an operation which had unmasked thousands of sites which had been used to collect such data.
The Russian security firm Group-IB was involved in the operation, providing data that helped to identify the websites and providing expertise in digital forensics.
RiskIQ, a company that has closely followed the activities of those using Magecart-style tactics, has described the group as a cyber crime syndicate.
At the time, one of the company's researchers, Jordan Herman, told iTWire: "[This is} the injection of skimmer code onto e-commerce websites with the intent of stealing credit card and other personal information. In the past, we limited this moniker to six discrete criminal groups, but, while we still track a number of specific groups carrying out this type of cyber crime, the proliferation of Magecart means that there are more persons involved in this activity than it is practical for us to enumerate."
Craig Jones, Interpol's director of Cyber Crime, said: "Strong and effective partnerships between police and the cyber security industry are essential to ensure law enforcement worldwide has access to the information they need to address the scale and complexity of today’s cyber threat landscape.
“This successful operation is just one example of how law enforcement is working with industry partners, adapting and applying new technologies to aid investigations, and ultimately reduce the global impact of cyber crime.”