A device and a method for inputting passwords in ATM or door-lock and etc, having display means are provided. In particular, said device comprises a keypad in display means where numbers or letters for passwords are arranged randomly, and further comprises a keypad providing an indirect password numbers or letters randomly arranged, according to an original password, to be input in another indirect password keypad such that the original password of a user can be protected effectively from the others eye.

 
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