An anonymous reader writes with a report from Help Net Security that the credential management system used by Pearson VUE (part of education company and publisher Pearson) has been breached "by an unauthorized third party with the help of malware." Pearson VUE specializes in computer-based assessment testing for regulatory and certification boards. From the story: Over 450 credential owners (including IT organizations such as IBM, Adobe, etc.) across the globe use the company's solutions to develop, manage, deliver and grow their testing programs. The company is still assessing the scope of the breach, and says that they do not think that US Social Security numbers or full payment card information were compromised. But because the PMC is custom designed to fit specific customer requirements, they are still looking into how this incident affected each of their customers. According to a note on Pearson's site, the system remains down for the time being.