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10 minutes is a huge understatement of the time required. You need to capture enough flawed packets to deduce the RC4 cipher that is used. This can often require the analysis of millions of packets and can take hours if not days. Only under very rare conditions can this layer of security be compromised in minutes.
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Here's a video of a dude cracking WEP in 10 minutes.
http://whoppix.hackingdefined.com/Whoppix-wepcrack.html