cyber – adj. of or involving computers or computer systems
malware – n. a computer software program that is designed to damage or disable computers and computer systems
encrypt – v. to electronically change (information) from one form to another, especially to hide its meaning
ransom – n. money paid in order to free a person being held
surveillance – n. the act of watching someone or something carefully, especially in connection with law enforcement
apply – v. to use in a particular situation
online – adj. of or related to a computer or telecommunications system, such as the Internet
unlock – v. to open or undo; to free from restrictions