Common Security Myth: "I Don't Have Anything a Hacker Would Want"
Yes, you do. Hackers want to control your PC to send spam, distribute malware, or help launch a denial of service attack. Hackers want your information to use for identity theft and fraud.
Most attacks are automated. Hackers simply seek out and compromise all vulnerable systems.
For More Information: MS-ISAC: Tips for Staying Safe Online Sophos: Security Tips for the Workplace -- Think Before You Click