It encrypts the victim's files, making them inaccessible, and demands a ransom payment to decrypt them. While some simple ransomware may lock the system without damaging any files, more advanced malware uses a technique called cryptoviral extortion. Ransomware is a type of malware from cryptovirology that threatens to publish the victim's personal data or permanently block access to it unless a ransom is paid off.
Security information and event management (SIEM).Host-based intrusion detection system (HIDS).
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