Synnovis security incident history
Hacking, data breaches and other security incidents involving Synnovis, with related coverage.
Incidents: 1 · Most recent
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.
Related reports: 38 · last report →