Co-op apologises after hackers extract ‘significant’ amount of customer data

The National Cyber Security Centre and the National Crime Agency are assisting with an inquiry, the group said

M&S boss urges shoppers to visit stores in person as it battles cyber-attack

Retailer ‘working day and night’ to tackle incident that has hit its online operations

Luxury department store is forced to shut some systems but website and shops continue to operate

Cybersecurity expert says group are ‘unusual but potently threatening’ coalition of ransomware hackers

Exclusive: In a letter seen by the Guardian, staff were told steps had been taken to keep systems safe

Retailer takes some of its systems temporarily offline ‘as part of proactive management of incident’

New outlet due to welcome shoppers on Thursday regarded as key to helping revive famous London thoroughfare

Reports on group thought to have previously hit MGM Resorts come as Marks & Spencer online orders remain paused

Company says consumer confidence could deteriorate further as countries face risk of recession

Company had strong first quarter but says it cannot raise outlook for this year owing to tariffs uncertainty

Nearly 30% of total spending by biggest chains over four weeks was on special offers and discounts, says Kantar

Fashion revival and warm weather had boosted the retailer – but the attack has halted website sales

Hack has wiped more than £500m off Marks & Spencer’s stock market value in the past week

Marks & Spencer has halted orders on its website and apps, giving customers a refund for those placed after Wednesday

Exclusive: Warnings on slashed commission rates came two years before high court claim alleging telecom firm was ‘unjustly enriching’ itself