this post was submitted on 12 Jun 2024
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Privacy
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VPN at all times
Nah, encrypted communication.
A VPN won't really do anything against CSS/IMSI catchers.
Forgive my ignorance, but isn't preventing this type of man in the middle attack exactly what VPNs are for?
That's not how a VPN works. A VPN masks the information you are actually accessing by showing you query the VPN instead. To make a connection to a service you still need an address. This info is what they are using to identify your device.
Most traffic is already encrypted (httpS) so someone spying on you wouldn't know the content of your communication only who you contact. But without a VPN a man in the Middle could see who you are contacting. E.g. looking up pornhub. With the VPN it only shows you looking up the VPN.
Right, that's what I understood. So using a VPN, a CSS will be able to identify that my phone is active, but not the content I'm accessing, or who I am accessing it from, correct?
The previous comment said VPNs do nothing against this type of attack- were they just referring to identifying your device?