Change.org was hacked late Friday by someone who made `` cosmetic '' changes on the popular petition website , officials said . No personal information was stolen , spokesman Benjamin Joffe-Walt said in a written statement . He added that none of the 12 petitions targeted had its number of signatures affected . The modified petitions included one calling for officials to end the prosecution of a Florida teen charged in connection with a same-sex relationship with a 14-year-old ; a petition to close the detention center at Guantanamo Bay ; and a petition to allow gay Boy Scouts leaders , said Brianna Cayo-Cotter , a spokeswoman for Change.org . Change.org officials believe the petitions were selected because they were all in a featured section of the website and were n't picked because of the causes they represent , she said . Joffe-Walt said the hacker exploited a `` minor vulnerability '' and made changes to text and photos on the petitions . The flaw was fixed while the website was offline , he said . Change.org , based in San Francisco , California , says it has 35 million users in 196 countries . Successful Change.org campaigns have included one in which a petitioner asked Bank of America to rescind a $ 5-per-month fee on bank cards . The petition received more than 300,000 signatures and helped to spark wide media coverage .
Online-petition site Change.org was hacked over the weekend . No personal data was stolen , a spokesman said . The targeted petitions were in a featured section of the website . The website says it has more than 35 million users .