The cyberattack today has infected at least 16 trusts and has been identified as Wanna Decryptor, a malware variant that has also attacked other UK organisations today.
In a statement, NHS Digital said the ransomware attack was not specifically targeted at the NHS, and had caused disruptions to a “range of sectors”.
As of 3.30pm today, 16 trust had told NHS Digital they have been infected. Several trusts have said they have cancelled appointments and diverted ambulances.
“At this stage we do not have any evidence that patient data has been accessed. We will continue to work with affected organisations to confirm this,” a statement said.
NHS Digital described the ransomware as Wanna Decryptor, while other experts have suggested it is known as WanaCrypt0r 2.0.
NHS Digital said it was closely with the National Cyber Security Centre, the Department of Health and NHS England to support the trusts. The National Crime Agency is also involved.
“Our focus is on supporting organisations to manage the incident swiftly and decisively, but we will continue to communicate with NHS colleagues and will share more information as it becomes available,” NHS Digital said.