13. 1234567 (Down 6) 14. sunshine (Up 1) 15. master (Down 1) 16. 123123 (Up 4) 17. welcome (New) 18. shadow (Up 1) 19. ashley (Down 3) 20. football.

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Presentation transcript:

(Down 6) 14. sunshine (Up 1) 15. master (Down 1) (Up 4) 17. welcome (New) 18. shadow (Up 1) 19. ashley (Down 3) 20. football (Up 5) 21. jesus (New) 22. michael (Up 2) 23. ninja (New) 24. mustang (New) 25. password1 (New) compiled from files containing millions of stolen passwords posted online by hackers.

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10 Password Length in Characters Low Complexity: Alphabetic, No Case (N=26) Alphabetic, Case-Sensitive (N=52) Alphanumeric: Letters and Digits (N=62) High Complexity: All Keyboard Characters (N=80) ,7043,8446, ,9767,311,61614,776,33640,960, ,915,77619,770,609, ,800,235, E E E E E E E E E+19 Note: On average, an attacker will have to try half of all combinations.

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ItemMean Number of Sites105.7 Number of Unique IDs6.6 Number of Unique passwords4.7 Number of Unique log-in credentials11.8 ID re-use ratio19.1 Password re-use ratio29.2 Log-in credentials re-use10.5 % of used unique log-in credentials45.6%

Reuse ratio = 2.9, hmm I wonder how accurate this is?

ItemMean Inclusiveness0.94Use the same log-in credentials Largest component nd largest component (cumulative) 3 rd largest component (cumulative) Vulnerability Index most frequently used log-in combinations use in 81% of sites vs unique log-in credentials VI = expected proportion of sites subject to potential breaches if a breach at one site occurs Larger values of VI indicate higher levels of vulnerability

Use Password Manager 1Password Roboform Password Based Key Derivation Function Version 2 (PBKDFV2) Systems using PBKDFV2 Copyright Pearson Prentice-Hall

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Copyright Pearson Prentice-Hall

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