What is WannaCry? What does WannaCry ransomware do?

A ransomware attack called WannaCry that was first launched on 12 May and since spread around the world impacted a number of high-profile organisations globally, including NHS England in the UK.[ Related: 8 ways to manage an internet or security crisis ]Ransomware is a type of malicious software that will block access to your files unless you pay a ransom.Some 47 NHS trusts fell victim to these ransomware attacks resulting in devastating consequences for some patients, as operations were cancell