It cannot be changed more frequently than every 47 hours and 50 minutes.
You can’t reuse any password that has been used before, including by other people.
It must be at least 80 characters long.
It must contain characters from at least 6 unicode blocks, must include at least two mathemtical symbols, 2 blocks of at least 5 sequences of R-to-L script and one sound that can only be heard by children under 12, dogs and bats.
It should not have more than 5 parts lemon, unless it also has some sugar or aspartame present.
any more than 2 incorrect login attempts will cause your chair to catch fire.