London hospitals declared a critical incident after a cyber-attack led to operations being cancelled and emergency patients being diverted elsewhere. 

It applies to hospitals partnered with Synnovis - a provider of pathology services. 

UK Correspondent Gavin Grey told Heather du Plessis-Allan “This was potentially one of the worst cyber-attacks in the UK.” 

Grey said “Overnight, the ransomware company dumped 400 gigabytes on their darknet site – including patient names and dates of birth.” 

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