A system and method are disclosed to improve password security assigned to a user, the method comprising: a method for performing enhanced security authentication, the method comprises: generating one-time password, by a security server, by filtering original password characters, wherein a security server provides a display on a hardware display screen, in which a plurality of keys are arranged and at least one selected from the arranged keys is used to filter original password characters; storing, by a memory unit, the original password and the one-time password generated; determining, by the security server, whether a user's password entered on the hardware display screen be accepted by comparing the entered password with the one-time password. The system comprises a storage module and a computer program for performing the method.