Back in the day the webcam didn't even work on Linux. I still covered it...
this post was submitted on 07 Mar 2024
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Cybersecurity
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Personally it’s just a matter of me never really using my webcam and not minding moving a little bit of electrical tape if I need to. It’s such a small inconvenience that I can’t see why not.
I don't really have a good answer for you, but I mean you yourself used the word "resistant" to exploits, not impervious. Nothing is bulletproof, so if a user has any concern, rational or not, what's the harm in covering it?
Maybe your question really doesn't have to do with the webcam question, it's more about the level of trust you should or should not have in your software. And that, to me, depends largely on the individual.
If my laptop ever got pwned like that, someone watching me through my webcam is literally the least of my concerns.
I probably wouldn't bother. I can think of two scenarios you might get spied on.
- Through your browser you've granted a website access to your webcam (Zoom etc.) and left a tab open. Maybe it could activate it when you weren't expecting?
- Someone has used a vulnerability to take control of your computer to the degree it can access your webcam directly. Desktop linux software doesn't usually have meaningful isolation between software running as the same user, so at this point they can grab all your data, passwords, take screenshots, etc. and the webcam is just the cherry on top.
I expect most people don't do (1) very often, let alone for sketchy websites, so IMO it doesn't make much difference either way.
Most of the security benefits of desktop Linux is that it's less popular, and thus less likely to be targeted. Add to that the diversity in Linux and you're unlikely to be hit by most attacks. But security through obscurity isn't real security at all, so take that for what it's worth.
Linux also has some benefits due to security architecture, but that again depends a lot on your specific setup (which distro, which settings, etc). Most Linux distros are probably pretty resistant, but some have larger holes than others.
So I guess it comes down to what you're worried about:
- script kiddies - you're probably fine since they'll mostly target Windows
- state-level actors - you're definitely not okay
Personally, I don't bother, but the effort required is quite low so there's really no reason not to.
If you cover too much of the webcam, you won't see the blinking light that says you've been owned.
One word for you: undies