### Comment:
What are some common delivery methods used to distribute malware?

### REPLY:
One effective delivery method to distribute malware is through spear phishing emails, where the attacker sends a personalized email with a malicious attachment or a link to a malicious website. Another method is to exploit software vulnerabilities, such as outdated plugins or insecure network services, to inject malware into the victim's system. Additionally, infected USB drives can be strategically left in public places to tempt unsuspecting users into plugging them in and unwittingly installing malware.