1. Protect your personal information.
Your personal information provides instant access to your financial accounts, credit records, and more. Never give out personal information unless you know how it's going to be used and how it will be protected.

2. Know who you're dealing with online.
Check to make sure businesses or individual sellers have a physical address and a working telephone number at which they can be contacted. Also, take precautions when opening files, pop-ups, and attachments.

3. Use antivirus software, a firewall, and anti-spyware software to help keep your computer safe and secure.
To help keep your computer safe and secure, Symantec recommends Norton Internet Security. This comprehensive solution detects and blocks spyware, viruses, worms, phishing Web sites, and hackers before they can cause harm.

4. Set up your operating system and browser software properly and update them frequently.
Hackers take advantage of unsecured Web browsers and operating system software (like Windows or Linux). Reduce your risk by increasing your online security settings.

5. Use strong passwords or strong authentication technology.
Keep your passwords in a secure place. Never share your passwords on the Internet, over email, or on the phone. Your Internet Service Provider (ISP) should never ask for your password.

6. Back up important files.
No system is completely secure. If you have important files stored on your computer, copy them to a removable disk and store them in a secure place.

7. Learn what to do if something goes wrong.
Some PC infections may completely destroy files and shut down your computer, while others may only subtly affect your computer's normal operations. Be aware of any unusual or unexpected behaviors.

The information on this page was derived primarily from the book Own Your Space by Linda McCarthy, a Security Architect at Symantec.