The hotel heiress opened up in an interview with RadarOnline.com about the August 24 incident when Nathan Parada attempted to break into her Los Angeles home.
She said: 'It was so scary.
'This man with two huge knives was trying to bang through my windows and come in, God knows what he was going to do.'
Hilton's beau Cy Waits, 34, had to pull a gun on Nathan, 31, to get him to drop the weapons until the police came.
Paris added: 'The police took a little while to get there, so he literally had to hold him with a gun down on the floor and get the knives away.
'It was like something out of a movie, he is definitely my hero.'
The 29-year-old said she doesn't know what she would have done if Cy wasn't there.
Parada was charged with felony burglary and attempted burglary.
Hilton has since upped security at her home.
She added: 'It's just scary that someone could come into my home like that where I always feel so safe.'