 In many cases, the restrictions placed on passwords actually serve to decrease the security of the account (either by preventing good passwords or by making the password so complex the user ends up storing it insecurely, such as on a post-it note).Some sites also block non-ASCII or non-alphanumeric characters.Password fatigue will typically affect users, but can also affect technical departments who manage user accounts as they are constantly reinitializing passwords; this situation ends up lowering morale in both cases.