Everyone should be aware of this:
Public Wi-Fi may turn your life into an open notebook
"When people are on a public wireless connection, they have the same expectations about privacy as when they are on the Internet at home," said Cheung, 32, a computer security expert and an editor for TG Daily, a technology news website.
"But it doesn't work that way. Someone could be listening in."
Cheung was using a "sniffer" program that intercepted online signals as they flew back and forth from the laptops to a wireless modem hidden somewhere amid the coffee paraphernalia.
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