Ransomware explained: Hacking for cash threats on the rise

Quite simply, ransomware locks or encrypts files or documents and demands payment to regain access.Ransomware normally installs itself on a computer or phone via a Trojan programme disguised as something innocent, such as an email attachment/link, a popular app, or a fake software update.NHS Digital said it had been the victim of software called Wanna Decryptor, which experts have described as the "atom bomb of ransomware".