Your Computer's Safety Guards
Written by Gordon Fecyk, 3/16/2005
I first wrote this in Spring 2004, as part of a newsletter project Pan-Am was supposed to launch. With the launch of the Anti-Windows Catalog, these writings now have a proper home.
DO YOU USE SAFETY GUARDS on your electric tools? Your circular saw, table saw, band saw, router, belt sander and so on? Most company workshops must follow safety codes set by the local authorities, Union regulations and governments to protect the lives and limbs of their employees. Every power tool you buy from Sears or Black & Decker or Makita etc have safety guards to protect the tool's user from harm, and also to keep the manufacturer from getting sued.
Your computer has safety guards, too, even though use of these isn't mandated by any governing body. While no one's directly lost a life to a computer virus or a network worm or a malicious programmer, using your computer's safety guards can protect you from potentially reputation-threatening (or job-threatening, or relationship-threatening) mistakes. They also keep your computer operational, reducing down-time and thus maintaining productivity. They are your first and best defense against viruses, "spy ware" and other nuisances.
Now try to break your computer while logged on to that account. If your consultant, retailer or manufacturer's done their job right and set up your computer with NTFS, it should be protected. Try deleting "explorer.exe" from C:\WINDOWS\SYSTEM32 for instance. The operating system should tell you "Access is Denied." Try deleting a program folder from C:\Program Files. Same result. Try installing something you found on the Internet. It will probably tell you that you need to log on with an Administrator account, or if it wasn't written to check for that, it will probaby crash. But your computer will be unharmed.
If you can't break your computer while logged on using a limited user account, a virus can't break it either. If you can't install something while logged on with this account, a web site can't install spy ware on it either.
You'll also need to be more choosy about the accessories and software you buy for your computer. Not all software works correctly as a limited user, especially software designed for Windows 95, 98, MacOS 8 and so on. Fortunately, the likes of Microsoft and Apple made it easier for us - look for their logos on the box such as the Designed for Windows and MacOS X logos. Even if a product doesn't bear these marks, ask the retailer if the product works as a limited user.
It's still possible to run old applications as a limited user but this takes considerable work. Upgrading or replacing the applications might cost more, but will save you from down time from mistakes. Pan-Am offers consulting services for making these "legacy" applications work with the safety guards on.
A firewall acts as a one-way door to the Internet. You can go out to the Internet, but no one on the Internet can come back in. Pan-Am generally recommends hardware firewalls over so-called "personal" software firewalls, because the hardware firewalls do their job without pestering you about every little bit of activity on the network. Hardware firewalls cost anywhere from $80.00 Canadian to $100.00 Canadian, no more expensive than most computer toys, but you will only have to spend that money once. The Windows XP built-in firewall does it job quietly, too.
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