If you think hardware credit card skimmers in brick-and-mortar payment terminals are bad enough, wait till you hear this. Physical card skimming's cyberspace equivalent has come of age and has been reportedly running rampant for months, quietly siphoning millions of online customers' credit card information and handing it over to cybercriminals.
In a recent blog post, de Groot detailed how hackers are exploiting vulnerabilities in popular retailing software found in most of the compromised merchants' online stores.
De Groot said he has been investigating the problem since November of last year when his own payment card information was stolen online. He then scanned a sample of 255,000 online stores and found 3,501 were already infected with skimming malware.