### Comment:
How does ransomware encrypt files on a victim's computer?

### REPLY:
Ransomware encrypts files on a victim's computer by exploiting vulnerabilities in the operating system or third-party software. Once the ransomware gains access, it scans the computer for valuable files and encrypts them using a unique encryption key. This key is then stored on a remote server controlled by the attacker, who demands a ransom payment in exchange for the decryption key.