Cybercriminals continue to double down on crypto-ransomware attacks. Ransomware can remotely encrypt and lock PCs, leaving them incapable of doing anything more than displaying a ransom note that tells victims how to obtain and transfer bitcoins to the attacker. Such attacks are so lucrative that some crooks even run “customer service” centers to provide technical advice to their victims and negotiate lower ransom payments or deadline extensions. Trend Micro counted a total of 29 new ransomware families in 2015, in the first half of 2016 it had already seen 79 new families.”]
Source: https://www.cuinfosecurity.com/blogs/cant-stop-ransomware-p-2235