Almost 6,000 online shops have been compromised by hackers who added specially crafted code that intercepts and steals payment card details. These attacks were first discovered by Dutch researcher Willem de Groot a year ago. The number of infected shops grew by almost 30 percent to 4,476, and by September, it reached 5,925. De Groot’s data suggests there are multiple groups engaged in online skimming. The malicious code is obfuscated and deployed using known vulnerabilities in content management solutions or e-commerce software that website owners have failed to patch.”]