Long passwords have fewer requirements.
A password this long must contain:
20 or more: any US keyboard characters
16-19: caps and lower-case letters
12-15: caps, lower-case letters, numbers
8-11: caps, lower-case, numbers, symbols
Tip: use four or more unrelated words,
Passwords are screened for easily guessed combinations of characters (123123, abcdef, qwerty, johnpaulgeorgeringo, drowssap, etc.) and published lists of compromised passwords. So:
A password that meets the length rules above may still be disallowed. If this happens, please try a different password.