Jeff Deifik, CISSP, C|CISO, MS Cybersecurity has been involved in cybersecurity and software development for several decades. He has worked at Information Sciences Institute (first e-commerce system), The Jet Propulsion Lab, and for the last 19 years at the Los Angeles Air Force Base.  He has been using Unix since 1983 and Linux since 1996.

Presentations

23x

Cracking Passwords Like a Boss

This talk will discuss different ways to crack passwords. There will be a brief history of how passwords are hashed, how hashing works, how long a password should be, how to pick a good password, password managers, and defense against passwords being cracked.

Three ways to crack passwords will be described. Custom open source tools I wrote to help manage password cracking will be described.

I will discuss statistics on 1 billion passwords I have found including password length, use of different character classes such as all lowercase, all uppercase and more. Password patterns will be discussed.

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