Since the dawn of computers, passwords have been the primary way to confirm the identity of an authorized user and reject unauthorized users who do not know the correct password. At first, passwords were more like pass-phrases with meaning and significance. As hackers got better at guessing someone's password, numbers were introduced, but soon hackers were cracking these too.
Today, passwords are convoluted sequences of unrelated numbers, letters, and characters that have no psychological significance and are ideally difficult for hashing programs to crack. However, they have also become incredibly tedious to type. Especially on a mobile softkey where one must 'switch keyboards' to access all the necessary characters.