Yesterday someone went on Michael Lohan's Twitter page and posted several controversial and completely untrue statements about his famous daughter which included, among other things, that Lindsay is HIV positive.

But then Michael Lohan told TMZ (who seem to be becoming his official press department) that he never posted those tweets.

Lindsay's estranged dad claims all of the hacked postings are blatant lies.

True to his word Lohan claims he's already contacted his lawyer in the hopes of tracking down the hacker and prosecuting him or her.