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NHS providers reviewing stolen Synnovis data published by cyber criminals

Posted on November 11, 2025November 11, 2025 by Dissent

Jordan Sollof reports:

Pathology supplier Synnovis is contacting NHS organisations which had data stolen and published online following a major cyber attack last year.

The ransomware attack on 4 June 2024, which led to a patient death, caused widespread disruption to NHS services in London including thousands of delayed appointments at King’s College Hospital NHS Foundation Trust and Guy’s and St Thomas’ NHS Foundation Trust and delays to blood testing in primary care.

Synnovis has now completed its investigation into patient and staff data published online by the cyber criminal gang on 20 June 2024, which includes personal data such as names, NHS numbers, test results and test codes that indicate the nature of tests requested.

The stolen data also includes information originating from Synnovis’ administrative working drive which supported the firm’s corporate and business support activities.

Mark Dollar, chief executive at Synnovis, said in a statement: “It has taken more than a year of painstaking investigation to decipher and piece together the data stolen in this smash-and-grab cyberattack.

Read more at Digital Health.


Related:

  • Update: London NHS hospitals revert to paper records after cyber-attack
  • Number of appointments at NHS trusts impacted by cyber attack passes 10,000
  • From the "I Wouldn't Hold My Breath Department"
  • Patient death at London hospital linked to cyber attack on NHS
  • Critical Incident: London Hospitals Cancel Operations Following Ransomware Incident at Synnovis
  • Cyber Attack on Synnovis Pathology Lab Traced to Longstanding Known Weaknesses at London Hospitals
Category: Breach IncidentsHealth DataMalwareNon-U.S.Of Note

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