Human error
According to Tass, a Russian news agency, around 660,073 cases of the coronavirus have officially been detected in Moscow. However, the files show only a subset of these numbers.
Eduard Lysenko, the head of Moscow Department of Information Technologies, said that during the checks, they have established that there has been no violation of the information system of the Moscow city government.
Lysenko added that the leak happened due to human error as members of staff who were processing the documents had allowed for the files to be passed on to third persons. He added that measures would follow, in which some local reports have taken to mean that there could be criminal prosecutions.