Suppose a person will type a few words in his PC and he leaves the place immediately. Is there a way or a software to know the last words typed by that. Please suggest.
you are asking for a key logger software...which records everey key stroke of the victim...
which I think is a part of hacking, it is used for spying and stealing personal and important data.
Technically, if he owns the computer I suppose it's legal. I've seen keyloggers advertised for businesses and schools, I know their not used that way but there is a legal use to it.
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yes you are right