What is a key feature of ransomware?

A key feature of ransomware is that it encrypts files on a victim's device and demands payment for the decryption key required to restore access to those files. This type of malicious software typically infiltrates a system through various means such as phishing emails or compromised websites. Once it has access, the ransomware locks the files and displays a message that instructs the victim on how to make a payment, usually in cryptocurrency, to regain access to their data.

Understanding this characteristic is crucial because it highlights the serious threat that ransomware poses to individuals and organizations alike. The demand for payment is what differentiates ransomware from other types of malware that may cause damage without financial extortion. This knowledge can be instrumental in implementing protective measures against such attacks.