'Here, have some leaked documents'
The story of how the documents found their way from the messaging platform Discord, to 4Chan and Telegram, has already been told by Aric Toler of the investigative open source intelligence group Bellingcat.
Mr Toler says it has not yet been possible to uncover the original source of the leaks, but charts their appearance on a messaging platform popular with gamers in early March.
On 4 March, following an argument about the war in Ukraine on a Discord server frequented by players of the computer game Minecraft, one user wrote "here, have some leaked documents", before posting 10 of them.