GREAT change is approaching. NIST will standardise prohibition of requirement of composing passwords from various character styles, and requirement for periodic password changes. These are harmful and obsolete rules. Now they will be treated as a cybersecurity weakness https://pages.nist.gov/800-63-4/sp800-63b.html
NIST Special Publication 800-63B

NIST Special Publication 800-63B

@LukaszOlejnik @TheShillito A broad interpretation of that would seem to preclude blocking single dictionary words and passwords found in data breaches. Is it the intention that dictionary attacks should be blocked via other mechanisms?
@h0m54r @LukaszOlejnik @TheShillito I don’t see any prohibition on testing for non-algorithmic subsets, i.e. wordlist good, characterset bad.