ransomware - definition and synonyms

noun
  1.   From our crowdsourced Open Dictionary
    computer malware that locks someone's machine and demands a payment from the computer owner in order to be unlocked

    Reveton is part of a category of malicious programs called ransomware that block certain OS features or encrypt personal files and ask victims for money in order to return their system to normal.

    Submitted from United Kingdom on 13/12/2012