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'They wanted $4m': Lessons for M&S from other cyber attacks

The retailer is reeling from a ransomware attack - here's what other people did when in the same situation.

"The Russians had stolen data from us - they didn't tell us what - and they threatened to put this stuff up on the dark web and cause us great embarrassment, and secondly they would lock down our systems." While some reported shortfalls in goods coming in, others described oversupply of some items, which meant food went to waste - with one saying they had to pour away multiple pints of milk. What is clear is other companies are watching what's happening closely, even more so since another retailer, the Co-op, shut down some of its IT systems this week in response to a separate cyber attack.

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