Have you noticed that Costco’s Photo Center has been taken offline? A statement on the site says the takedown is the result of an apparent security breach at the third-party vendor that hosts the site.

This situation is affecting multiple online photo sites. We are diligently working to determine when we can re-enable the site, but in all likelihood that will not occur until early August. We will update this statement when we have more information.

Published reports say that credit card information may have been hacked.

The security issue also involved CVS, Walmart-Canada, Rite Aid, Sam’s Club and Tesco, according to published reports. All the retailers have temporarily taken down their photo sites.

Costco’s statement did not identify the vendor. However, CVS named PNI Digital Media, and SC Magazine, which bills itself as targeting IT security professionals, reported that it is the same vendor used by Costco.

“PNI is investigating a potential credit card data issue, and outside security experts are assisting in the investigation,” said a PNI Digital Media statement emailed to SCMagazine.com on Monday. “If an issue is discovered, it is important to note that consumers are not responsible for any fraudulent activity on their credit cards that is reported on a timely basis.”