Clothing shortages, food waste, and millions lost each day: Inside the M&S cyberattack chaos

Deutsche Bank analysts estimate the Marks and Spencer cyberattack has already sliced £30m off M&S’s annual profits and will continue to cost the retailer £15m a week

After weeks of disruption at Marks and Spencer, contactless payments and gift cards are now being accepted, refunds are possible, and returns are being processed in clothing and homeware stores. Picture: Chris Ratcliffe/Bloomberg

‘It’s easier to list the things that work than the things that don’t’, said one worker, but customers are impressed by staff resilience and analysts believe the retailer will bounce back.

Unusual activity on tech systems over the Easter weekend was the first sign of a sustained cyberattack on Marks & Spencer, which is costing the retailer millions of pounds a day.