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Aug. 29, 2014 – Dairy Queen announced that a "limited number" of stores might have been affected by a data security breach first reported by KrebsOnSecurity, which placed the attacks as early as June.

In related news, the FBI is looking into a potential data security breach at JPMorgan Chase and up to four other banks. According to the Wall Street Journal, the extent of the attacks is not yet clear, but sources say the attack was a "significant foray" into the bank's system.

KrebsOnSecurity reported the breach at Dairy Queen after a credit union in the Midwest contacted the blog to report a possible pattern after detecting fraud on more than 50 members' cards that had been recently used at several Dairy Queen locations.

The news of these breaches closely follows revelations about breaches at UPS and the grocery chain owner Supervalu. NAFCU was the first financial trade association to call for a national data security standard for retailers in the wake of the massive Target data breach last year, and continues to push for legislative action on Capitol Hill.