First of all you want to user Free Internet . Congratulations. In fact you can become the owner of the machine . Probably the username and password of that machine is admin/admin. Type 192.168.1.1 on your web brower and change the password for that station.. then you are the proud owner of that machine. U can get into their network means you have no security or encryption. WEP is the basic encryption using preshared keys using 64 or 128 bits keys. Newer ones use WPA, WPA/PSK or 802.1x security. WEP keys can be broken with a WEP cracker. so it is a huge security hole. As for online banking it uses encryption using ssl so no one will be able to see what you are doing. It will look like garbage to the other people but hotmail doesn't use any encryption after verifying the password so others can see what you are sending.