VERY IMPORTANT

The Magecart actors have been in the spotlight of numerous high-profile attacks, including the aforementioned British Airways compromise. For each attack, specific domains were registered in an effort to hide within normal traffic for these sites. They also appear to be optimizing the code used on these sites, minimizing the footprint left on the compromised domains. In another brazen attack against a major online retailer, the actors behind Magecart have struck the eCommerce operations of the popular computer hardware and electronics retailer Newegg.