(Reuters) – Online retailer NoMoreRack.com is going through its second forensic audit in seven months to investigate a potential breach of customer card data, computer and cyber security blog KrebsOnSecurity reported on Wednesday. Credit card company Discover Card notified NoMoreRack.com last month about frauds tied to cards that were used at the company’s online store between November and mid-January, former Washington Post reporter Brian Krebs wrote on the blog. The e-retailer had commissioned a forensic audit by Trustwave after Discover Card, owned by Discover Financial Services, first alerted the company last August that it was a likely point of compromise.