The biggest problem with secure passwords is that they are hard to remember. That is where memorable password generators come in - creating passwords that are both secure and human-friendly.
The Memorability-Security Tradeoff
Traditional advice said to use complex, random strings with weird substitutions. However, research shows that people modify random passwords to make them memorable (weakening security), and random-looking passwords often follow predictable patterns. Modern security research now recommends using passphrases.
How Word-Based Passwords Work
A password like "correct-horse-battery-staple" is more memorable because it is a mental image you can visualize, longer because each word adds significant length, secure because even though it uses only lowercase letters the length compensates, and easier to type correctly under pressure.
Creating Memorable yet Secure Passwords
The best memorable passwords use random word selection (each word should be unrelated to others), personal insertion (adding elements only you know), and phonetic spelling (using spellings that sound like words but are written differently).