UnitedHealth data breach should be a wake-up call for the UK and NHS

UnitedHealth's Change Healthcare subsidiary suffered a major ransomware attack that used compromised credentials to access internal Citrix systems, resulting in large-scale health data exposure and a reported $22 million ransom payment; the article warns this incident and similar breaches (Vastaamo, Advanced) reveal widespread poor cybersecurity hygiene (missing MFA, exposed services) and heightened supply‑chain risks to healthcare systems including the NHS.