After a "security incident" on Saturday, June 25, that resulted in Macmillan closing its offices and its ordering and shipment systems, the company's warehouse has resumed "core operations, including order processing, shipping, and receiving," Macmillan announced yesterday. It said that "additional resources are being dedicated to quickly work through the backlog of orders submitted while our systems were down and we do not anticipate the need to move any on-sale dates at this time."
The security incident involved Macmillan's servers and internal system and also affected Macmillan's U.K. operations.