A Guide in the Face of Increased Threats

A recent Microsoft Windows security bulletin, known simply as MS03-026, was enough to catch the attention of the Department of Homeland Security, and lead to national alarm about hackers, Windows computers and the Internet. Though a widespread, full frontal attack on computers has never really happened, hackers continue to look for ways to exploit holes in your computer’s software to grab personal information or take control of your computer.

Who’s at the greatest risk of these attacks? The most vulnerable users are people whose Windows computers are directly connected to the Internet through DSL or cable, but who don’t keep their software up to date or who don’t use a “firewall”.

Are you safe? Reduce your vulnerability by following this simple guide.

Patching

The first line of defense against computer attack is your Windows software itself. Microsoft offers small updates to its Windows software to keep would-be attackers at bay. These small updates are commonly referred to as “patches”, acting much like the patches sewn on old jeans to cover holes. And, believe it or not, Microsoft gives these patches away.

The easiest way to keep your computer patched is to allow Windows to do it for you. When you get a new computer, this feature is typically enabled. In Windows XP, for example, this triggers the little “You have updates ready to be installed” message. Your computer periodically checks for updates and grabs them as they become available.

Not everyone trusts Microsoft, though. When we first get our new computers, our innate distrust of The Six Billion Dollar Geek leads us to turn off the automatic update feature for fear of giving our lives over to Microsoft. In this case, trust more, fear less. If you’ve already shut down this feature, however, you can still update your computer. To do this, find the “Windows Update” icon in the Start menu, or in Internet Explorer under the Tools menu. This program checks the versions of the software on your computer, then checks those against Microsoft’s current versions. If a piece of your software is out of date, it allows you to download your updates. Focus on keeping the “Critical Updates” current and installed.

Keeping your Windows software patched in this way avoids future hacking. Remember, however, that it doesn’t repair damage that may have already been done by not keeping up to date.

Firewalling

A computer firewall protects your computer from outside access. Firewalls come in two forms: software that runs on your computer, and hardware that connects to your computer and Internet connection. If you have a DSL or cable modem connection to the Internet, this is a critical component in protecting your computer.

The simplest form of firewall for home use is software called Zone Alarm (www.zonelabs.com). It comes in a free version that provides adequate protection for most home users. Zone Alarm can be updated to more powerful Plus and Pro versions for $39.95 and $49.95 respectively.

Hardware firewalls come in several varieties. Your choices depend on the type of Internet connection you have. The best bets come from Linksys (www.linksys.com) and D-Link (www.dlink.com). Both brands are available at retail computer locations, as well as on-line. Check with your Internet provider, as well, on options they offer for firewalls or requirements of your particular connection.