Learn About Password Security

We begin with a brief lesson on password security. I want to keep it short, so I won’t go into tremendous detail about encryption algorithms and cryptographic mathematics, and I’m going to do a bit of hand-waving when we get to the geekier concepts (and refer you to Appendix C: Calculate Password Strength if you’re genuinely interested in the details). But I think it’s important to have a basic grasp of the principles of password usage so you know what you’re up against, and why simple-sounding solutions are often extremely unwise.

And, even if you were well-versed in password security basics a few years ago, you should be sure to read about Multi-Factor Authentication, which has become increasingly important.

Get Take Control of Your Passwords, 3rd Edition now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.