M&S blames human error for £300m cyber hit

  • Marks and Spencer Group PLC (LSE:MKS) chief executive Stuart Machin said "human error" was at fault for hackers gaining access to its IT systems through a third party. On a call with analysts and reporters after the group's annual results announcement, Machin said he could not comment on whether a ransom had been paid in the cyber attack, for which the retailer today estimated would cost it about £300 million.