Want to keep hazmat out of your computer? Follow these steps

Protect yourself

Use anti-virus software. This protects your computer from known viruses and malicious programs.

Block spyware. Spyware and viruses often go hand in hand. Some hijack your Web browser and redirect you to their Web site. Others quietly download and install trojan programs, programs that log your keystrokes or other programs onto your computer so hackers can later take control of your computer.

Use a firewall. And change your passwords. A firewall tries to block hackers from entering your computer. If you are using cable or DSL connections to the Internet, a hacker can try to break into your computer at any time. Make sure you have a router/firewall properly installed and configured. The most common mistake home users make is buying a router/firewall but never resetting the default password; that’s like leaving the keys in the door. You also can use a software-based firewall to protect your computer from hackers.

Set your computer to “auto update.” This is easily done with Windows by visiting Microsoft’s Windows Update Web site (http://windowsupdate.microsoft.com). Install all “critical patches.” Make sure you also update other, non-Microsoft applications like Adobe Reader and Flash.

It doesn't have to cost you anything

Check with your Internet provider to see if it offers free security software to its clients (many do). Compare their offering to your checklist to see if there are gaps.

If you use one, look to your financial services firm for assistance. Many firms offer free security software to their clients.

Obtain free antivirus, anti-spyware/malware and firewall programs from a reputable Web site such as http://download.cnet.com or http://www.softpedia.com.

But buy something if you want it

Purchase a security suite from a well-known vendor. Note: Security software that you buy typically has an annual subscription fee necessary to continue the protection of your computer.

Use good judgment

Make sure the firms with which you conduct business online have a sound security policy to protect your information. In addition, find out what the process is if something goes wrong.

Be aware of Web site security. Not all sites are as reputable as they may appear. They could contain spyware or could be seeking your personal information. Here are a few tools to help you validate Web sites’ security:

McAfee SiteAdvisor (http://www.siteadvisor.com/)

Comodo Verification Engine (http://www.vengine.com/)

AVG LinkScanner (http://explabs.com/)

Bluecoat K9 Web Protection (http://www.k9webprotection.com/)

When in doubt, check it out

If you’re not sure whether the e-mail or text message you received is really from your bank, for example, pick up the phone and check.

Sources: InfraGard Nebraska, TD Ameritrade