Massive ransomware infection hits computers in 99 countries

A large-scale cyber attack using tools believed to have been taken from the US National Security Agency has targeted organisations across the globe, affecting 99 countries. Cyber security company Avast logged 75,000 instances of the ransomware, called WannaCry. The UK’s National Health Service (NHS) was amongst the worst affected. Other victims included FedEx and Renault, whilst major infections were also reported in Russia and China.