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Malware that disables the normal operation of a computer until money or other ransom is paid to the person or organization responsible for the malware.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Computer Science) informal illegal computer software that disables a computer or blocks access to data until a payment is received
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Ransomware -- also called cryptoviruses, cryptotrojans, cryptoworms or scareware -- comprises a class of malware which restricts access to the computer system that it infects, and demands that a ransom be paid to the creator of the malware for the access restrictions to be lifted.