Data posted by Russian-linked hackers show four-time Olympic gold medalist runner Mo Farah's blood readings were once flagged by track's governing body. Such passports, unlike traditional drug tests, track athletes' blood data for signs of doping over a long period. A single suspicious passport sample on its own isn't considered grounds for a ban and doesn't mean any trace of a banned substance was found. The data posted by the Fancy Bears group include alleged IAAF correspondence from April 2016 that lists Farah among athletes whose blood data was considered suspicious. At least four athletes whose biological passports were listed as suspicious have received doping bans for offenses unrelated to the passport data.

Source: ABC News July 06, 2017 16:17 UTC