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- http://xkcd.com/936/
- http://www.microsoft.com/security/online-privacy/passwords-create.aspx
- http://tidbits.com/article/7626
(pertains to //any// security, not just for wireless security!) - https://www.grc.com/haystack.htm
- http://en.wikipedia.org/wiki/Password_strength
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25-GPU cluster cracks every standard Windows password in <6 hours. Dan Goodin, Dec 9 2012
Password recovery
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