Closing the Door on Internet Predators

Jan. 12, 2007 — -- As computer technology advances, so do the methods used by those looking to take advantage of your home computer. It is surprisingly easy for others to gain access to your family's computer without your permission. Once they have access, virtually nothing on your hard drive is safe.

ABC News spoke to Paul Davis, vice president and program manager for the Enterprise Security Strategic Program in Unisys's global outsourcing and infrastructure services group.

Davis has more than 19 years of experience protecting individuals and businesses against computer-based security threats.

Here are some tips from Davis on how to protect your home computer from Internet predators.

Software Protection

The first and most fundamental step in protecting your home computer against hackers and those trying to gain access without your permission is to purchase an up-to-date virus package with up-to-date virus signatures.

"Choosing the right package is important," says Davis. There are protection packages available with anti-virus, firewalls and anti-spyware software. These offer multiple levels of protection and are, therefore, more comprehensive.

Even though most protection packages should automatically update your virus signatures, you should manually update them, as well. Also, make sure your software is enabled. Like turning on a light switch, if your software isn't enabled, it isn't protecting your computer.

Site-blocking software can also help. It stops you from going to disreputable sites that have a higher likelihood of exposing your computer to hackers.

Scan, Scan, Scan

Scan your computer for viruses regularly. Davis suggests once a week. One key indicator that your computer has viruses, or has been tapped by an unauthorized person, is if the machine seems to function slower than it does normally.

Don't Trust the Internet

According to Davis, "People think that because their computer is in their home, they are safe." Unfortunately, locking the front door to your house does not lock the door on Internet predators.

Stick to reputable sites and always check the spelling of a Web site. Often, those looking to get into your computer will do so through sites that, at first glance, appear to be well-known names, with just a slight difference in the spelling of the site name.

Be cautious of sites offering free software -- if it sounds too good to be true, it probably is.

Any site that requires your personal information -- Social Security number, credit card numbers, even your name and address -- should be examined carefully. Brand recognition is key. Reputable Web sites, with names you recognize and trust, tend to be the most safe.

Common Sense Is the Best Protection

"Security is common sense," says Davis. It is still possible for people to get into your computer, even with the best protection packages. The best safeguard is to be aware and vigilant of the sites you visit, the software you have, and the information you give out online.