The situation is currently being handled as a ‘critical incident’ by the chief executives of the two trusts that are most affected by the disruption. Credit: NoName_13/Pixabay.

Over 1,000 planned operations and more than 3,000 outpatient appointments in London hospitals have been deferred due to the ongoing disruption caused by a cyber-attack on Synnovis, an agency that manages labs for NHS trusts and general practitioners (GPs) in south-east London, the BBC reported.

Since the cyber-attack on 3 June, NHS England has reported that 3,396 appointments and 1,255 elective procedures have been delayed.

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Between 17 and 23 June, King’s College Hospital NHS Foundation Trust and Guy’s and St Thomas’ NHS Foundation Trust had to postpone 1,300 outpatient appointments and 205 elective procedures.

This data was published on 27 June, highlighting the extent of the impact.

The ongoing situation is being handled as a ‘critical incident’, according to the chief executives of these two trusts that are most affected by the disruption caused by the cyber breach.

The cyber-attack has led to the hospitals’ blood testing capabilities being at a fraction of the previous capacity.

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King’s College Hospital NHS Foundation Trust deputy chief executive Julie Lowe and Guy’s and St Thomas’ NHS Foundation Trust chief medical officer Dr Simon Steddon said in a joint statement: “We are having to postpone a number of operations and appointments at present, and we would like to apologise again to those patients affected. Staff are continuing to do an excellent job in very challenging circumstances, for which they deserve enormous credit.”

All the stolen patient data from Synnovis was leaked by Qilin, a Russian ransomware group.

As per an investigation undertaken by the National Crime Agency and the National Cyber Security Centre, the leak saw 400GB of private information being published on the darknet.

Last week, NHS Dumfries and Galloway of Scotland issued a warning to residents to assume that some of their personal data may have been compromised following a significant cyber-attack.