this post was submitted on 06 Oct 2024
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Yup. The way I’ve always described it is this:
Http means your employer knows you watched porn on the company WiFi, and they also know which specific videos and what your username for the site is. If site security is particularly lax, they may even know your password.
Https means your employer can see you watched porn on the company WiFi, but they don’t know which video(s) specifically, and they don’t know your login info.
VPN means your employer only knows you connected to a VPN. They may be able to take educated guesses at what type of content you were viewing (streaming video, for example, has a pretty easily identifiable pattern of data transfer,) but they don’t know what video you were watching, or what site it was coming from. The VPN service knows you watched porn, but the aforementioned rules about http and https still apply; If you’re using https, they don’t know specifics.
Tor means even the VPN doesn’t know which specific video(s) you’re watching, because they just see a connection to another Tor node, which sees another tor node, which sees another tor node… Etc. In order to know what you’re watching, they would need to own every node in the chain. If they own both the entry and exit node they may be able to match it to you with a timing attack, (they see packets going into the Tor network at the same time they see packets coming out towards you). Again, they can make educated guesses based on pattern recognition, but they won’t have a clear picture without owning both your entry and exit nodes and performing a timing attack.
Now you can substitute “your employer” for anyone who is trying to get your info. Public WiFi spoofer, your ISP, etc…
Probably worth noting that, if you are using an employer owned system to watch said porn, they likely have software on the endpoint which will let them see what porn you are watching, regardless of HTTPS/VPN/Tor. Depending on how much your employer cares about such things, that may or may not come back to bite you. I've worked at places where we regularly reported on users watching porn on work computers, and I've worked at places where we only reported on users getting malware while browsing porn at work. But, never assume your activity isn't being monitored on employer owned systems.
Exactly. If it's company-issued, assume there's spyware installed. We recently added a certain level of spyware to ours to monitor system files (afaik it's not screen recording or anything like that) because these aren't company issued devices (we bought them separately.