The International Association of Athletics Federations (IAAF) revealed that the Fancy Bear hacking group has allegedly penetrated IAAF servers and compromised athletes' Therapeutic Use Exemption (TUE) applications, NBC News reports.
TUEs are exemptions allowing athletes to take otherwise banned substances if they have specific medical needs. The compromised information was collected from a file server and found in a newly created file. There is no confirmation that the records have been stolen from the network.
An IAAF press release says this incident was discovered on February 21 by Context Information Security during a routine investigation across the IAAF systems. Athletes who were likely affected have been contacted by the sports body.
"They have our sincerest apologies and our total commitment to continue to do everything in our power to remedy the situation and work with the world’s best organizations to create as safe an environment as we can," assured IAAF president Sebastian Coe.
Read more on NBC News.