You couldn’t check your email, you couldn’t watch Netflix, you wouldn’t even be able to read this article. Imagine a computer that is not in any way connected to the internet. Humans need water to live and computers need the internet to reach their full potential. Of course, you can already see a downside. Downsides to an Air-Gapped Computer System After all, if you know your tap water has a bug in it, you wouldn’t drink it. By closing this connection, you prevent hazards from reaching you.
The reasoning is most threats come from the internet, no matter if it’s a targeted cyberattack or just the office idiot downloading dodgy files onto their work computer. The other term for it is “air wall,” which is better than this conceptual air gap as you can imagine a wall of nothing separating your computer from everything else. The term comes from the idea that there is a gap between your computer and the internet, which is filled with air. The air-gapped computer or system has no contact with the world other than physical access by an authorized person or people. You can find air-gapped networks and other systems. In practice, this is a little watered down, of course. No LAN, no WiFi, no office extranet, no printers, nothing. By this, we usually mean the internet, of course, but to be a proper air gap, there can’t be any network connection whatsoever. In short, it’s a computer that isn’t connected to any network. While it seals your computer from threats, it also seals it from the World Wide Web, meaning it loses much of its usefulness.Ĭomputer storage that isn’t connected to the internet, usually a machine that only allows data transfer using USBs or similar formats.įirst, let’s take a closer look at what an air-gapped computer is. However, it is also impractical for most people most of the time. The short version is air-gapping is an extremely effective security measure, maybe even the most secure after never turning a device on. Setting up an air-gapped machine is as easy as getting an old laptop, unplugging it and never plugging it in again.Unlike networked systems, air-gapped ones rely a lot more on physical security, which can make it a pricey proposition for companies.Because of the inconvenience, air-gapping is usually reserved for extremely sensitive and critical systems.Air-gapping is a great way to make sure files are kept safe from interference, though the cost for this security is they’re usually harder to access.
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In this guide, we’ll go over how an air gap works, how to set one up and why you should - or shouldn’t - bother. If you’re looking into the many ways you can secure your digital devices, you may have come across the idea of an air-gapped computer, one that’s not connected to the internet at all.
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