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For example, I'm trying to work what percentage of passwords are within the top 500 most common passwords.

closed as off-topic by Xiong Chiamiov, Stephane, Matthew, schroeder Jun 12 '17 at 8:11

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  • Have you done any research? There are tons of resources about this very thing over many years, – schroeder Jun 12 '17 at 8:11
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Analysis from 2014

From wpengine

This website has some really good statistics from analysing 10 million passwords. You can look at this FAQ for information on how the 10 million passwords were collected.

Just to select a few statistics from wpengine:

  • 0.6 percent of passwords are 123456
  • A hacker could guess 16 out of 1000 passwords by using the 10 most popular passwords
  • 8.4 percent of passwords end with a number
  • The average entropy of a password is 21.6

Top 10 passwords:

  • 123456
  • password
  • 12345678
  • qwerty
  • 123456789
  • 12345
  • 1234
  • 111111
  • 1234567
  • dragon

Some nice images from the analysis:

Top 50 passwords

Password length

Common keyboard patterns

Most used numbers

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