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2
votes
2answers
134 views

Public AP: How to reduce vulnerability window between Captive Portal and starting VPN?

I always use a VPN on my Mac when I access over public APs (such as coffee shop free WiFi) How much should I worry about the window of time where I am in the captive portal (the agreement screen) and ...
3
votes
1answer
455 views

Can a captive portal be secured [closed]

I am interested in using a captive portal on a public network. After reading the wikipedia article and several questions here on sec.SE, I don't understand how I can secure it, or even, if I can ...
5
votes
2answers
4k views

How is user authentication sent in a public wifi? Radius/802.1x/EAP etc

I visit the airport, I pull out my laptop and connect to a network (no password needed). I open up my browser and i am presented with a screen saying I need to pay to use the network. If I pay, I ...