The World Anti-Doping Agency (WADA) confirmed a second round of leaked data posted online, after medical records of gold medal-winning gymnast Simone Biles and seven-time Grand Slam champion Venus Williams were among four American female Olympians whose data was revealed Tuesday."We condemn this criminal activity and have asked the Russian Government to do everything in their power to make it stop," said Olivier Niggli, WADA's director general. Niggli said the hack on WADA's computer system constituted "retaliation" against the agency, which imposed heavy penalties against Russia over doping, including banning practically its entire athletics team from the Rio Olympics.On Tuesday, WADA announced that the Russian cyber-espionage group Tsar Team (APT28), also known as Fancy Bears, had broken into its Anti-Doping Administration and Management System (ADAMS) database. The hacking group released information gleaned from the files of sports stars including U.S. Olympic gymnast Simone Biles and tennis champions Venus and Serena Williams. In a fresh release, the group this time published confidential data of 25 athletes, from eight countries."To those athletes that have been impacted, we regret that criminals have attempted to smear your reputations in this way," said Niggli. On Wednesday, Russia's sports minister denied there had been any Russian government involvement in the hacks."How can you prove that they are hackers from Russia? You blame Russia for everything," Vitaly Mutko said through a translator on the sidelines of a UEFA congress.The Kremlin yesterday said it was ready to help the WADA in fighting cybercrime."If we're talking about a request for help, then no question, if we receive such an appeal," Kremlin spokesman Dmitry Peskov told journalists in a conference call."Russia consistently backs fighting cybercrime, consistently invites all states and international organisations to cooperate in this area, and this position of Russia is well known," Peskov said.WADA director general Olivier Niggli said the hacking of the agency would hamper Russian efforts to reintegrate into the sports world.Foreign ministry spokeswoman Maria Zakharova responded at a televised briefing yesterday, saying it was wrong to connect the issue of cybercrime with Russia's attempts to overcome the massive doping scandal around its athletes."You can't link up the battle with cybercrime with redressing the rights of athletes, these are questions that fall into different categories," Zakharova said.In a hostile statement she accused WADA of sowing confusion, saying that "no one understands the principles behind the actions and functioning of this organisation".Three-time Tour de France champion Chris Froome, whose medical records were made public yesterday, defended his right to a therapeutic use exemption (TUE)."I've openly discussed my TUEs with the media and have no issues with the leak which confirms my statements," the 31-year-old said in a statement."In nine years as a professional I've twice required a TUE for exacerbated asthma, the last time was in 2014."