Most of us would never dream of going off and leaving the doors to our homes wide open. Yet many of us don’t think twice about leaving our home networks completely unprotected, even though an experienced hacker can gain access to enough information to defraud us of our money, credit rating, and identity.

Home network security doesn’t need to be difficult or expensive, nor do you have to be a computer guru to maintain good home network security. Just follow these few easy steps to discourage most intrusion attempts.

Use a Firewall

If your computer is attached to a broadband modem, it’s always in touch with the internet–that is, always on. A firewall provides home network security by regulating access between your network and any other networks that your network might be trying to interact with.

Most firewalls allow you to choose which networks you want to connect with and which networks you don’t. Disallowed networks will be “blocked.” Depending on your preferences, you may or may not get a message when an outside network is blocked from connecting with your computer.

Use Anti-Virus Software

Anti-virus software is exactly what it sounds like: it scans your computer for viruses and either removes or isolates them. (A virus, by the way, is a usually malicious program that copies itself to codes or documents on your computer any may email itself to people on your contact list as well).

New viruses are discovered almost daily, so to make sure your home network security against viruses, purchase a package that provides frequent updates.

Use Caution With Downloads

A few years ago, several people downloaded what they thought was a pretty waterfall screensaver. What they really downloaded, however, was a Trojan Horse–a malicious program that hides itself in a seemingly benign program–that caused their computers to crash.

You can enhance your home network security by avoiding downloading programs from the internet unless you are sure they are safe.

Most large business sites like Travelocity, Yahoo, Amazon, etc. go out of their way to make sure the downloads they offer are harmless. Be cautious, however, about downloading materials from small, private sites. Often, your firewall or antivirus software will warn you when you are about to download questionable material.

Don’t Fall for Phishing Scams

In a phishing scam, you receive an email from what appears to be a reputable company (e.g., eBay). The email informs you that your information has been lost or has expired and directs you to click on a link to update your info before your account is closed. When you click on the link, you are directed to a bogus site where any information you enter (e.g., passwords, credit card numbers) can be used to defraud you.

Home network security is a relatively new concern for most of us. But it is to your benefit to inform and protect yourself about criminals that crash through your modem instead of your front door.