Quick hypothetical scenario.<p>If I were to open a free wifi network and let anybody use it, say call it: "Free Internet!" and many people used it.<p>Could I intercept those users personal information suck as Facebook usernames, passwords, emails, etc?<p>How deep would me penetration go? Or will I only be able to intercept packets?<p>I always tell my wife to not use online banking etc when she visits a cafe with free internet, but it's just a hunch - not based on my actual knowledge on the matter. That's why I'm asking. Thanks!