A ransomware attack is spreading across the world. This is just over a month after the WannaCry attack hit more than 150 countries. The attack originated in Ukraine but has quickly spread to other countries such as the UK and Russia. The malware has reportedly taken Ukraine banks offline, locked government officials out of their computers and affecting the Ukrainian state power company. Ransomware is a malicious computer program that locks users out of their computers and servers until a specified sum is paid.