[ ran-suh m-wair ]
/ ˈræn səmˌwɛər /

noun Digital Technology.

malware planted illegally in a computer or mobile device that disables its operation or access to its data until the owner or operator pays to regain control or access.

Origin of ransomware

First recorded in 2005–10; ransom + -ware
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ransomware