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Created: Thursday, November 1 2007 16:23.48 CDT

Modified: Thursday, November 1 2007 16:23.48 CDT

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A brief analysis of 40,000 leaked MySpace passwords

Author: sp

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Over the last days some group released passwords to nearly 45000 MySpace accounts and they announced to release another 30000 passwords in the next few days. I used a few hours before Saturdays lunch to write a small program that analyzes the passwords that were released so far.

At worst the results of this are a useless time-filler, at best its a case study of what happens if a website forces their users to choose passwords with certain minimum requirements. MySpace demands that every password contains at least one non-alphabetical character (like 0, 1, 2, or !, ?, @). How the users adhered to this requirement can be seen in the tables below.

It is my understanding that the 43713 passwords that were leaked so far come from fishing sites that trapped people to enter their password. This makes the passwords less reliable than a password list hacked straight from the MySpace servers. People could have misspelled their MySpace passwords or they could have entered fake information after they noticed that someone was trying to steal their password. A quick analysis has shown that probably less than 1% of the leaked passwords suffer from these problems.
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