WADA said the hackers were a "Russian cyber espionage group" called Fancy Bears. They revealed records of "Therapeutic Use Exemptions" (TUEs), which allow athletes to use otherwise-banned substances because of a verified medical need. "I was disappointed to learn today that my private, medical data has been compromised by hackers and published without my permission," Williams said. Last month, hackers obtained a database password for Russian runner Yuliya Stepanova, a whistleblower and key witness for the WADA investigations. A spokesman for Russian President Vladimir Putin rejected WADA's statement blaming Russian hackers as unfounded.

Source: ABC News September 13, 2016 17:00 UTC