Guessing a Password

If you were to try a brute force attack on cracking an e-mail password, you might spend an eternity going through all possible values. However that might not be a smart way to go about the task of guessing a user's password. A little knowledge about password characteristics can increase your chances and speed up your results considerably.

Let's start with password length. Here are the most common lengths of password, with the most common lengths presented first:
  • 8 characters
  • 7 characters
  • 9 characters
  • 6 characters
  • 10 characters

If you choose only passwords that are between 6 and 10 characters, you will have tried the lengths of 93% of all passwords out there. Nine out of ten sounds like good odds to me. For a super fast shortcut to guessing passwords manually, I would try out the most common passwords that are out there. Here are some really common ones:

  • password1
  • abc123
  • password
  • blink182
  • qwerty1
  • 123abc
  • 123456
  • soccer
  • princess1
  • monkey

Finally I leave you with some advice. Don't choose any of these common passwords as your own. Try not to choose a password length that is common. And above all, do not choose a password that can be found in a dictionary.