The Mozilla Foundation closed its online stores on Tuesday after a third-party company it uses to run one of the sites' back-end operations suffered a security breach.
The security lapse hit GatewayCDI, a 100-employee outfit with offices in San Francisco, Chicago and Portland, Oregon, which runs the Mozilla Store, the foundation said. It remained unclear if any customers of the website selling coffee cups, tee-shirts, and other schwag promoting Mozilla were compromised.
"Once notified, we took the immediate preventative step of shutting down the Mozilla Store to ensure that no additional users could be compromised," Mozilla representatives wrote. "Mozilla immediately reached out to GatewayCDI and encouraged them to quickly inform individuals whose data had been compromised."
GatewayCDI representatives weren't available for comment, but Mozilla went on to say the company is in the process of analyzing their systems to determine the cause and extent of the breach. Any Mozilla Store customers who may have been affected will be contacted directly by GatewayCDI.
The maker of the popular, open-source Firefox browser also shuttered its International Mozilla Store, though that site's backend isn't run by GatewayCDI. Both stores displayed a message saying "closed for maintenance."
Mozilla's advisory didn't detail the extent of the breach, how long it lasted or how many shoppers were affected, and so far, GatewayCDI has posted no information about the compromise. Mozilla said it didn't plan to reopen the store until foundation employees "have a satisfactory assurance of ongoing login security and data privacy." ®