this post was submitted on 06 Oct 2024
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[–] [email protected] 381 points 1 month ago (56 children)

What is he talking about, public WiFi can easily poison and monitor your DNS requests (most people don't know or use encrypted DNS), and there's still tons of non-https traffic leaks all over the place that are plain text. Even if encrypted, there's still deep packet inspection. VPNs can mitigate DPI techniques and shift the trust from an easily snoopable public WiFi to the VPN's more trustworthy exit servers.

This guy really needs to elaborate on what he's trying to say when the cyber security field very much disagrees with this stance. I'm not a huge fan of Proton, but they aren't doing anything wrong here. You should use it for public Wi-Fi.

[–] [email protected] 72 points 1 month ago* (last edited 1 month ago) (9 children)

Yup. You can grab any unencrypted data passed between the user's browser and a server literally out of thin air when they're connected to an open access point. You sit happily at the Starbucks with your laptop, sniffing them WiFi packets and grabbing things off of them.

Oh and you have no idea what the myriad of apps you're using are connecting to and whether that endpoint is encrypted. Do not underestimate the ability of firms to produce software at the absolute lowest cost with corners and walls missing.

If I was someone who was to make money off of scamming people, one thing I'd have tried to do is to rig portable sniffers at public locations with large foot traffic and open WiFi like train stations, airports, etc. Throw em around then filter for interesting stuff. Oh here's some personal info. Oh there's a session token for some app. Let me see what else I can get from that app for that person.

[–] [email protected] 25 points 1 month ago (2 children)

Just FYI https://shop.hak5.org/products/wifi-pineapple. There are ready-made devices that can do basically what you are describing!

[–] [email protected] 7 points 1 month ago* (last edited 1 month ago) (1 children)

Oh nice. Just gotta dress em up like Unifi or Aruba then stick em up on the ceiling.

[–] [email protected] 7 points 1 month ago

Yep, my partner gave one for my birthday, it's basically plug-and-play. It can automatically harvest credentials, spoof captive portals, etc. I bet that in most places nobody would question something like this hanging on the ceiling indeed.

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