At about 7 a.m., Paris tweeted, "So Scary, just got woken up to a guy trying to break into my house holding 2 big knifes. Cops are here arresting him."
Police said Nathan Lee Parada, 31, was arrested for allegedly trying to break in to the home at about 6:45 a.m. He was booked at Van Nuys jail.
Hilton was at home asleep at the time and apparently woke up to the sound of the man banging on the windows. She saw him through security cameras and called police.
Hilton posted a photo of the arrest on her Twitter page.
The LAPD confirmed that the man was carrying two knives. He was booked at Van Nuys Jail. His name has not been released.
Celebrity chef Gordon Ramsey, who lives in the neighborhood, said he worries about an incident like this one because of his children.
"My children are fine," Ramsey said. "We had a peaceful night last night and it was no big deal."
This was not the first time Hilton was the target of a break in.
Two years ago, members of the so-called Bling Ring stole $2 million in jewelry from her Hollywood Hills home.
Actor Charlie Sheen also lives in the Mulholland Estates. Two of his cars were stolen on two separate occasions from in front of his home. They were found at the bottom of a canyon about a half-mile away.
Police are investigating how the intruder was able to get past security.