A number of NHS organisations have reported to NHS Digital that they have been affected by a ransomware attack. The investigation is at an early stage but we believe the malware variant is Wanna Decryptor. This attack was not specifically targeted at the NHS and is affecting organisations from across a range of sectors. At this stage we do not have any evidence that patient data has been accessed.

https://digital.nhs.uk/article/1491/Statement-on-reported-NHS-cyber-attack