Marks & Spencer Confirms Customer Data Was Stolen in Ransomware Attack. Here’s What You Need to Know.

Last month, retail giant Marks & Spencer (M&S) suffered a ransomware attack that disrupted operations across its 1,400 stores and forced a temporary halt to online orders. This week, the company has confirmed that customer data was stolen during the cyberattack, raising serious privacy concerns for millions of shoppers.

Since the incident occurred on April 22, 2025, M&S has conducted an internal investigation and CEO Stuart Machin has confirmed the theft of sensitive customer information.

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