Synnovis cyber-attack leaks thousands of Essex NHS patient records
SpilloverSpillover from the Synnovis incident · View original incident →Thousands of patient records from Mid and South Essex NHS Foundation Trust were stolen in the Synnovis cyber-attack. The trust informed patients that their information had been stolen.
Key facts
- Affected organisation
- Mid and South Essex NHS Foundation Trust
- Original incident
- Synnovis ransomware attack disrupts London hospital care and leaks patient data
- Incident type
- Data breach
- Occurred / detected
- Not confirmed
- Scale of damage
- Thousands of patient records
- Cause / method
- Cyber-attack on Synnovis
- Location
- United Kingdom
If your data was exposed
Exposed dataHealth & medical data
- Don’t tap links in texts, calls or emails that mention this incident and offer compensation, refunds or breach checks. Check directly on the organisation’s official website or app.
Timeline
- It emerged that thousands of Essex NHS patient records had been stolen in a cyber-attack.
- Mid and South Essex NHS Foundation Trust informed patients that their information had been stolen.
Original incident
This is spillover from the Synnovis incident.
Synnovis ransomware attack disrupts London hospital care and leaks patient data
900kImpact: More than 900,000 patients affected; about 1,600 surgery and care appointments cancelled in one week
UK pathology provider Synnovis was hit by a ransomware attack in 2024 that disrupted transfusions, surgery and care at London hospitals. Patient names, dates of birth, NHS numbers and test results that could be linked to some individuals were stolen, and more than 900,000 patients were affected. Hospitals used paper records, and after finishing its analysis of the stolen data, Synnovis began notifying affected healthcare organisations in November 2025.
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3 related reports
The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.