### Comment:
What are some common techniques used by malware to exploit vulnerabilities in operating systems?

### REPLY:
One common technique used by malware to exploit vulnerabilities in operating systems is through the use of zero-day exploits. These exploits target newly discovered vulnerabilities that haven't been patched yet. By using such exploits, malware can gain full control over the targeted system, allowing attackers to steal sensitive information like passwords, credit card details, and personal data.