NHS London statement on Synnovis ransomware cyber attack – Wednesday 5 June 2024

An NHS London spokesperson said: “The ransomware cyber-attack on Synnovis is continuing to cause disruption to services at Guy’s and St Thomas’ NHS Foundation Trust, King’s College Hospital NHS Foundation Trust and primary care providers in south east London.

“All urgent and emergency services remain open as usual and the majority of outpatient services continue to operate as normal.

“Unfortunately, some operations and procedures which rely more heavily on pathology services have been postponed, and blood testing is being prioritised for the most urgent cases, meaning some patients have had phlebotomy appointments cancelled.

“We are sorry to all patients impacted and NHS staff will work hard to re-arrange appointments and treatments as quickly as possible.

“Patients should access services in the normal way by dialling 999 in an emergency and otherwise use NHS 111 through the NHS App, online or on the phone. Patients should continue to attend appointments unless they are told otherwise by the clinic team.

“NHS England has deployed a cyber incident response team, which is working round the clock to support Synnovis and provide emergency guidance, as well as coordinating with health services across the capital to minimise disruption to patient care.”


  • All urgent and emergency services such as A&E, urgent care centres, maternity departments remain open as usual
  • At present the full extent of the attack, as well as the impact upon data, is not known. Once further information is known we will report accordingly in line with ICO requirements.