Not necessarily. Facebook now uses SSL for login and I'm assuming any sane Online banking service does the same. On the other hand there things to watch out fo

Not necessarily. Facebook now uses SSL for login and I'm assuming any sane Online banking service does the same. On the other hand there things to watch out for like SSL strip. http://www.thoughtcrime.org/software/sslstrip/ http://www.thoughtcrime.org/software/sslstrip/ So make sure that you are actually using the HTTPS version of any site. If you are using standard HTTP (or another unencrypted protocol) then you can assume that the network owner can intercept everything you are doing.