Secure Data DEFINITION: Ransomware is a type of malware used for data kidnapping, an exploit in which the attacker encrypts the victim's data and demands payment for the decryption key. A ransomware program can be installed from an e-mail attachment, an infected program, or a compromised or malicious Web site. Malware used for this purpose is sometimes called a cryptovirus, cryptotrojan or cryptoworm.Ransomware is not new.
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