The blonde socialite, who suffered a similar ignominy in 2004 when private text messages on her mobile phone were leaked onto the Internet, insists the accusations are "silly."
Lohan's spokeswoman Leslie Sloane Zelnik tells PageSix.com the perpetrator sent "disgusting and very mean messages that everyone thought were coming from Lindsay. They weren't. We now have her lawyers looking into it.
"Some people think Paris may have been involved because the wording of the messages sounds very familiar."
Hilton's representative Elliot Mintz retorts, "I'm saddened this happened to Lindsay. I lived through this with Paris two years ago when her Sidekick was hacked into, and the loss of privacy is unbearable.
"But as for any suggestion that Paris Hilton would have anything to do with this, that is silly, untrue and unfortunate."
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