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Does a VPN used on a smartphone with Wi-Fi disabled (mobile data only enabled) provide any sort of protection? (beehaw.org)

submitted 4 months ago by [email protected] to c/[email protected]

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I've never completely understood this, but I think the answer would probably be "no," although I'm not sure. Usually when I leave the house I turn off wifi and just use mobile data (this is a habit from my pre-VPN days), although I guess I should probably just keep it on since using strange Wi-Fi with a VPN is ok (unless someone at Starbucks is using the evil twin router trick . . . ?). I was generally under the impression that mobile data is harder to interfere with than Wi-Fi, but I could well be wrong and my notions out of date. So, if need be, please set me straight. 🙂

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[–] [email protected] 3 points 4 months ago* (last edited 4 months ago) (7 children)

While my threat model is not universal, it comes close, at least for the average user which OP seems to be from their question. In practice, there is very little unencrypted traffic these days and in the case of that traffic you will have to ask yourself if your (commercial) VPN provider is more trustworthy than your ISP.

If you need to ask if you need a VPN there's a 99% chance that you don't. There are certainly a few use cases for both commercial VPNs and TOR (see my other comment) but to even be aware that those apply to you, you probably already have enough technical knowledge to approach the question from the direction "I want to do XYZ, how can I be more secure?" and not "I've heard of VPNs, do I need one?"

[–] [email protected] 8 points 4 months ago (4 children)

My national government has no business knowing which protocols I use to contact which endpoints and tamper with that traffic. Wrapping up that information in a tunnel is a good first protection layer.

[–] [email protected] 5 points 4 months ago (3 children)

If you're using a commercial VPN from a provider who can legally operate in your country, your national government can just as easily get that information from them as from your ISP.

[–] [email protected] 3 points 4 months ago

While ISPs are in many jurisdictions obligated to log your connections (data retentions laws), VPN providers are not.

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