Ransomware is not an unfamiliar threat, but it has been affecting cybersecurity for the last few years. Kaspersky Lab has a tradition of reporting on the evolution of the threat here and here. We have found that ransomware is rapidly vanishing, and that cryptocurrency mining is starting to take its place. The report covers the period April 2017 to March 2018, and compares it with April 2016 March 2017. The number of users who encountered ransomware fell by almost 30%, from 2,581,026 in 2016-2017 to 1,811,937 in 2017-2018.”]
Source: https://securelist.com/ransomware-and-malicious-crypto-miners-in-2016-2018/86238/