Director General of Russian Anti-Doping Agency (RUSADA) Yuriy Ganus recently suggested "1000s" of changes were made to data from Moscow (Russia) Laboratory, before the World Anti-Doping Agency (WADA) took control of it. This exposed in German magazine Der Spiegel, Ganus says this could have included the names of some athletes involved being swapped, sometimes as late as December 2018 and Jaunary 2019. He reiterated the alterations to data as WADA retrieved (in January) were too "big and significant" to be a "coincidence", though whether the original or the leaked source was perturbed has not been determined. Here are translated some actual statements.
"It is not concerning deletion of complete data packets, but changing or tweaking them in differing places."
"Someone has aimed to silence the information on a vastly scale.
"This manipulation can also concern the names of athletes.
"So, this makes it not simply just about what was (the record of 2015 say) but later also about how whether this material was modified afterwards.
"We speak of switching over months of periods. The most recent are from December 2018 and January 2019."
Ganus has a solution to the problem. "Russia has to find the original record and hand it over to WADA," he said. The chance that this actually happens, he described himself as "very small".
https://www.spiegel.de/plus/rusada-chef-jurij-ganus-wir-reden-hier-ueber-eine-verschwoerung-gegen-uns-und-den-sport-insgesamt-a-0573e225-f3ec-4164-80a2-39fafb1f70dahttps://www.spiegel.de/sport/sonst/dopingskandal-russland-manipulierte-womoeglich-noch-anfang-2019-labordaten-a-1290610.html