Can a video monitoring system see what is on your computer screen?
If my office has a video monitoring camera installed in it and the camera is focused on my computer I am using in my office, can the image that is on my computer be picked up by the camera? Can my boss see that I am on the internet instead of working?
Usually when I see a computer screen on TV it shows only fuzzy lines and no image, this is why I ask.
Usually it's pretty hard to pick up the image this way. The camera refresh rate is usually 30hz, while the computer monitor can have any refresh rate you set it to, and there's not enough resolution. If the two refresh rates don't correspond to each other (or are not multiples of one another), usually it's hard to see much. Though if you are too obviously online, it may be possible to pick-up, though not what exactly you are doing...
But... don't hold your breath.
Per statistics you can easily find online - 76% of employers monitor their employees computer traffic in the US. They don't need to see your screen, to know you're online. Most workplace computers hooked up to internet through internal network, going through a proxy. It's very easy for a system administrator to set up a proxy such, that every time you access a web page outside your organization, time of access and URL are recorded and your employer will be able to see them along with some statistics as to how often and what web sites you visit. Then if they so desire they can even save the content of sites that is being loaded to your computer, and any info you send them (including passwords), unless it is encrypted, as in SSL web sites.
It does not end there. Some clever employees (though not as many as above) take it a step further. They quietly install software on your work computer, that allows a boss to peek at your screen anytime right through the network. They can pull up any employee's screen and watch what's on it. No external camera needed. Some even record all of your days activity.
Last but not least, some bosses (though even fewer) take it even further than that - they'd record your activity such as keystrokes and mouse clicks through the day! So they will have all your passwords you entered to external web sites...
So in short - forget about privacy in a workplace. That's your bosses computer, they own it, and they own you while you're on the clock... So usually all of these activities are all legal too!
LEM.
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