Patients seeking urgent healthcare at NHS hospitals in London have been redirected elsewhere after a “major” cyber-attack crippled facilities at the last minute. A critical incident spanning Guy’s, St Thomas’ and King’s College Hospital Trusts meant Britons in need of vital treatment couldn’t receive it – in particular, those in need of blood transfusions, after the cyber-attack knocked out pathology labs’ IT systems connected to NHS-contracted firm Synnovis. The Royal Brompton and Harefield has reportedly been forced into cancelling potentially life-saving transplants, with the Evelina London…