The question came from someone close to the Pocketnow family, which means that even the geeks among us are still confused with just how secure (or insecure) public WiFi is. It's a valid concern, and one that you may not have stopped to consider. We all like free WiFi, right? Should we be worried? What's the worst that could happen? For the context of this article we're going to limit the conversation to just "public" WiFi -- meaning wireless Internet access that's available to the general public. This could be offered at a school campus, public library, your work's office, a fast food ...