It also keeps curious persons from getting your personal data and copy it on their USB drives. USB Disk Security aims on providing an application that helps you defend against the potential malware traveling on USB sticks that, at some point in time, are plugged into your computer. USB flash drives, for instance, are perfect carriers of such security threats. No matter the actual reason for a computer that lacks appropriate security, this practice can never work right in an environment that includes an Internet connection and the use of external storage mediums.
While there are a many users that use security suites or standalone antivirus / antispyware software, they don't add to the majority. Security is the most ignored important aspect of computers when it comes to home users.