A huge cyberattack has hit several firms in at least 10 various countries. The countries which hit by the cyber attack were Ukraine, Russia, Denmark, Spain, India, Netherlands, UK, Lithuania, France and the United States. It was first reported in Ukraine and Russia, which have been worst hit. The hackers demanded money to unlock the data but there is no guarantee for getting back data. In May 2017, the biggest cyber attack was recorded which had affected at least 75,000 computers in more than 100 countries.