Costco, Sam's Club, others halt photo sites over possible breach
July 20, 2015 at 18:04 PM EDT
TORONTO, July 20 (Reuters) - Half a dozen online photo printing stores based in the United States, UK and Canada, including those of Costco Wholesale Corp and Sam's Club , became in recent days the latest retailers to face a possible data breach at PNI Digital Media, which manages and/or hosts photo services sites.