Mid and South Essex NHS Foundation Trust (MSE), one of England’s largest NHS trusts, said thousands of patient records were compromised in a ransomware attack on diagnostic provider Synnovis roughly two years ago.

The trust is the second to alert patients to damage from the breach, after a disclosure by Bedfordshire Hospitals NHS Foundation Trust last week.

The MSE trust, which operates Broomfield hospital in Chelmsford as well as Basildon and Southend hospitals, said 2,380 of its patient records were affected.

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