Today, new research has been released revealing the truth that for a least a year, North Korean hackers have been stealing card information from large retailers’ customers in the U.S and Europe. And according to researchers, such a fraudulent scheme directs to the Lazarus (Hidden Cobra), a group of nation-state hackers. In the act of exfiltrating the stolen credit card data and hiding the operation, legitimate websites have been used. In the past years, this credit card information stealing incident from customers of online stores is becoming a threat. These are what we commonly known as the MageCart attacks from which hackers use malicious scripts (web skimmers) to copy private information from the checkout page.