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Securing Your Computer

In this video, you will learn how to secure your computer.
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In this video, we’re talking about securing your computer. Now, securing your computer is pretty important. If a malicious individual has physical access to a computer, you’ve lost control of it. If an individual can watch you typing anything on your computer, especially anything that’s sensitive like a password or emails that they probably shouldn’t be seeing, spreadsheets, or whatnot, you’ve lost control. If an individual can see confidential information on a computer, you’ve lost control again. And if an individual can see your password written down, say on your desk, then you’ve also lost control. That’s why it’s important to secure your computer and your area.
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Now, in a situation of a front desk secretary or a help desk, welcome desk, whatnot it is important that your monitor is positioned in such a way that a person can’t just go to the side of you and take a look. You should always have people’s attention pointed straight at you and at the back of the monitor. If you allow them to go to the side of the monitor, they can potentially see. If you allow an individual to go behind you, which is called shoulder surfing, they’re able to see what’s on your screen, which again is a security risk.
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That’s why you want to try to keep people facing straight towards you with the screen behind– the back of the screen facing them. That way they can’t see what’s on your screen. Another thing you want to do is make sure your computer secure. Make sure the computer is in a position where someone can’t just reach over and plug something in. Say a malicious USB device, for example. And this can include regular flash drives, which could have malicious payload on it. And even phones, to a certain degree. You could actually take a phone, root it, put Kali Linux on it, and actually have it inject code into a computer.
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Again, that’s why you want to make sure your computer’s secure, not just the screen, but also the computer itself so people can’t plug anything into it. Now, from your work desk, ideally, you kind of want the same thing. You want to make sure that people can just look at your screen just passing by or standing behind you. If someone’s working with– if you’re working with someone, rather, make sure that they can’t see your screen if there’s anything confidential that they shouldn’t be seeing on there. Also make sure that, if you have to write your password down, make sure it’s locked up and secure.
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There are situations where it’s better to have a password written down in a notebook than having just a really simple password. Again, if you have to do that, make sure your passwords are secure at all times. Now, in situations where you can’t really secure your monitors, say you’re in an open work area, and the desk, you just can’t position your monitor in such a way where people aren’t going to see it, then you might want to invest in a privacy screen. What privacy screens do typically, is an overlay on a monitor. Either a monitor or a laptop screen, and it helps prevent people from seeing it.
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If I try to look at it from an angle, a good privacy screen is going to look black. If I’m more than say a foot or two or a couple of feet away from the screen, the screen should look black and you shouldn’t be able to see it. So if you’re in that situation, shop around and take a look for a good privacy screen. Now, just to quickly highlight this video, keep control your PC. Minimise access that people have to your computer. Make sure the position is in such a way that both monitor and computer where people can’t get physical access to the computer or shoulder surf and take a look at what’s on your screen.
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Written passwords, if you have to have a written password, make these secure at all times. And in situations where you can’t control the screen, consider a privacy screen, something that’s going to block out what people are able to see if they’re sitting away from your desk itself. So that was all about physical security. Next, we’re going to take a look at physical locks for your server room in the next video. Thanks for watching. I’ll see you there.

In this video, you will learn how to secure your computer. Your computer can be physically vulnerable if others can, for example, access your computer, watch you type, and see confidential information or your password on your screen.

Here is how you can increase the physical security of your computer:

  • minimize the number of individuals who can access your computer
  • position your computer and/or monitor to minimize access/view
  • if you have to write down a password, ensure that it is out of view and secure
  • consider a privacy screen
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