GreenBorder: We “Make IE Safe to Use”. Outlook, Too.   - 1,554 Views, 3 Comments

GreenBorder does indeed have a novel concept. It’s not exactly a firewall. It’s more like an ante-room. They call it a “virtual environment”, and the way it works is like this: imagine that you are going out on a blind date. Now you don’t know anything about this person other than what you read in their online dating profile (hey, it’s Silicon Valley, isn’t that how everybody dates?), and so rather than inviting this stranger into your home, you meet them at Starbucks (hey, it’s Silicon Valley, isn’t that how everybody dates?) Once you get to know them, and see that they aren’t malicious, and are really who they say they are, you invite them back to your house.

That’s what GreenBorder does. GreenBorder’s “virtual environment” plays the Starbucks role to your PC’s home. When untrusted applications and content arrive at the edge of your networked PC, GreenBorder says “not so fast - not on a first date. I don’t know you well enough, so let’s put you through your paces in my virtual environment before I trust you to come into my home.”

Put another way, GreenBorder creates a virtual PC “sandbox”, and tests the untrusted content there, quarantined away from your actual PC operating system. Then you, the user, can either choose to accept the content, or to remove it. A pretty nifty concept.

There are some downsides, however. For example, if you don’t do anything with the content, GreenBorder removes it when you log off. That means that you can lose content which you actually want if you fail to accept it. And that applies to any content which GreenBorder flags as “untrusted” or otherwise unrecognized. So not only worms and viruses, but good things, like maybe program updates, photos, or other content which might look suspect to GreenBorder - which could be pretty much anything binary which doesn’t come from a whitelisted source.

Still, the reality is that there is always going to be some baby in this sort of bathwater, and as a user you have to decide which is more onerous to you - checking for babies before you pull the bath plug, or drowning in bathwater.