I make this Nxt Account yesterday and have become some nxt, i have a password with 50 lines, is ist secury enough?
It's totally overkill but if that makes you happy, be my guest.
A
random 23 char (no special characters) password is stronger than bitcoin/nxt private key itself. The keyword here is random -- and must not be predictable. The 12 word password generated by the client is perfectly safe too.