What exactly makes an Internet connection "secure"? Obviously using free wifi at Starbucks isn't a great place to be if you want security, but are there other ways people connect to the Internet that are also risky? I have an AT&T hot spot and my understanding is that it is fairly secure. Can the same be said if you have a wireless router at home? What about if you have DSL? What about cable? Is using your iPhone (or Android) as a hot spot secure? Thanks.