 In 2001, Professor Latanya Sweeney again successfully matched anonymized hospital visit records in the state of Washington to individual persons using the state's voting records 43% of the time.There are existing algorithms used to re-identify patient with prescription drug information.Two researchers at the University of Texas, Arvind Narayanan and Professor Vitaly Shmatikov, were able to re-identity some portion of anonymized Netflix movie-ranking data with individual consumers on the streaming website.