[Tapin]

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Actually, the worst the could happen is that since wireless hotspots like that are vulnerable to being hacked into, someone could get your account info.

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I haven't bothered to snoop my own connections, but I'd assume that all of the major online players are encrypting their traffic stream. Sniffing the wireless traffic (which wouldn't involve any real hacking if it's an open WAP, btw) won't do much good, there.