Password Strength Chart https://ibb.co/YLxM90
Tip: When adding a capital letter or a digit to your password, do not simply put the capital at the start and the digit at the end
Use password checkers such as passwordmonster.com to test the strength of a password.
Complexity vs Strength
Complex passwords do not always mean strong passwords. Users tend to substitute “a” for “@” or “i” for “!”. Hackers know these patterns!
So, complexity, by itself, is not enough. Longer passwords should be chosen, and more characters, not substitutions, should be used.