What is the main function of ransomware?

• A. To enhance system performance
• B. To encrypt a user's files and demand payment for the decryption key
• C. To backup data securely
• D. To monitor network traffic for suspicious activity

Answer: (B)

The primary function of ransomware is indeed to encrypt a user's files and demand payment for the decryption key. This type of malicious software targets the data on a victim's device, locking it away and rendering it inaccessible. After the files are encrypted, the ransomware displays a message that typically includes a ransom amount that the victim must pay in order to receive the key necessary to unlock their files. This tactic is a serious threat to individuals and organizations alike, as it can lead to significant data loss, disruption of services, and financial strain.

In contrast, enhancing system performance, securely backing up data, and monitoring network traffic are functions associated with legitimate software and security practices, not an attack vector like ransomware. These alternatives focus on improving or maintaining system security and functionality, which highlights the stark difference in purpose compared to the coercive nature of ransomware.