The 26-year-old star whose personal details were published on WikiLeaks recently, said she overreacted to the breach of privacy, reported Los Angeles Times.
"I did one of the worst things ever, which was react really quickly," the "Birdman" star said.
"I was getting all these emails and texts from people I didn't know, 'Hi, I'm Joe from the UK I like your movies', and I was so overwhelmed that I went to my inbox and I deleted all my emails.
Stone, who will be seen in the upcoming film "Irrational Man", said "it was horrible" and she "cried for like an hour.