Marks & Spencer says its April cyberattack will cost around £136 million ($177.2 million) in total.

The British retailer disclosed the figure in its half-year results Wednesday, having recorded £101.6 million ($132.4 million) in charges for the six months ended September 27. It expects another £34 million ($44.3 million) in the second half.

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M&S said £83 million ($108.2 million) was spent on "immediate systems response and recovery," while the other expenses are connected to legal and other professional services.

Much of these costs will be offset by the maximum £100 million ($130.3 million) claim M&S made on its cyber insurance policy, as referenced in May's 2025 profit and loss accounts and reiterated in today's results.

The attac

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