For this discussion I am referring specifically to the Wifi Pineapple: http://hakshop.myshopify.com/collections/frontpage/products/wifi-pineapple. Basically it takes advantage of the automatic connect feature in Windows that remembers your home wifi password and automatically connects when you turn your computer on and it sees your router. When you have your password and connection saved and a Wifi Pineapple is in range you will connect to it instead and all your traffic can be sniiffed etc. A man in the middle attack. My question is how can someone defend against this? I guess someone could manually connect to there home wireless network every time and type in the password to avoid this. What other solutions are there? I am also guessing if you are using a VPN it would not even matter if you were connected to a Wifi Pineapple because your traffic would be encrypted correct? I am also curious if linux is susceptible to this device as well. So as I see it the only defenses are... 1. A VPN with encryption 2. Typing your password in and manually connecting every single time. Any other ideas? I also was reading about another device called the Wifi Robin: It claims to "crack" wifi networks so you can use them. Im guessing it can crack wep since it is easily cracked with something like Backtrack. As far as WPA I don't believe it can. It may try to preform some sort of Brute force attack but that would be it. From the website for Wifi Robin: Im guessing a more correct answer for WPA would be. "It may never crack WPA if the password is strong enough"