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The Supplier Secret That Cost Marks and Spencer £440M: Is Your Supply Chain the Backdoor?

The Supplier Secret That Cost Marks and Spencer £440M: Is Your Supply Chain the Backdoor?

by support@cyber-attack.co.uk | Jul 21, 2025 | Cyber Essentials, Cyber Security

The £440 million cyberattack that brought Marks & Spencer and Co-op to their knees wasn’t masterminded in a dark web lair.It began in a Sheffield back office where a family-run lightbulb vendor used the password “Spring2023!” for their accounting...

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Cyber Essentials certification isn’t about tech theatrics – it’s the UK government’s bare-minimum standard to block the vast majority of attacks. 

Verified cyber insurance data indicates that organisations that have Cyber Essentials are 92% less likely to need to claim on their cyber insurance policy, than organisations who don’t have Cyber Essentials.

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