Variants of ransomware Locky and Mamba have resurfaced and are more lethal than ever. Those unfortunate to be infected, risk encryption of the entire HDD and need to cough up a huge sum of money for decryption and recovery of their data.
https://www.notebookcheck.net/Beware-Ransomware-Locky-and-Mamba-on-the-prowl-again.242132.0.html