A retrospective impact analysis of the WannaCry cyberattack on the NHS

Analysis of the impact of the WannaCry cyberattack on the NHS found a 6% drop in admissions, with 13,500 outpatient appointments cancelled. The financial impact of the attack reached £5.9m ($8m), and the same pattern across all NHS hospitals would have cost £35m. The attack highlighted the need for strong cybersecurity as health services become more reliant on IT, the analysts noted. They also said contingency plans and adequate resources are crucial to prevent disruption and harm to patients.