A unit of insurer UnitedHealth Group Inc. faced a cyberattack in February that paralyzed much of the US health-care system. A gang of Russian-speaking cybercriminals targeted the Barts Health NHS Trust, whose hospitals care for about 2.5 million people, in July. Synnovis is a partnership between the company Synlab UK & Ireland, Guy's and St Thomas' NHS Foundation Trust and King's College Hospital NHS Foundation Trust. This ransomware attack is the third to hit Synlab AG in the last 12 months. In June 2023, Synlab said its French branch was hit by attacker group Clop.