Britain’s NHS reels from a ransomware attack

The attack has been attributed to Qilin, a Russian criminal group; the British government appears to have hit back by taking down the gang’s dark-web site. Qilin’s assault targeted the IT systems of Synnovis, a health-care firm that processes around 100,000 blood tests per day, rendering its data unusable. Several hospital trusts—including two London teaching hospitals, Guy’s and St Thomas’, and King’s College Hospital—have been affected by the attack. So have primary-care providers in six London boroughs.