Question

What was the name of worldwide cyberterrorism attack that began on 12th May 2017?

Answer 1

Wanna Cry ransomeware, It encrypts your all data's and files of your system and demands money..

Answer 2

The answer of your question is "WannaCry ransomeware attack''.

This attack target the windows made by microsoft by just doing the encryption of data.
This attack began on 12th may in the present year. It was so fast spread that it infect about 230,000 with in just a day, even the UK's national health service caught in that big attack due to which they have to run the services only for most emergency.

Hope this will helps you.