How secure is your wifi connection?

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How safe do you think your wifi connection is? Apparently, if you are using no wifi encryption just like at Mcdonalds and StarBucks, you could just be her next victim! Read here http://www.information-age.com/technology/security/123458891/how-7-year-old-girl-hacked-public-wi-fi-network-10-minutes to find out more!