Facebook admits that fake news has been posted on the site - and agrees that foreign agents used it to meddle in the US Presidential election.
The site's security team claimed its own data "does not contradict" the US Director of National Intelligence's conclusion that Russia interfered with the US Presidential election.
The assertion was contained in a report which discusses how foreign governments use the platform to manipulate public opinion, according to Sky News.
Russia is not mentioned by name in the document, but it does claim that fake profiles were set up on the site in order to share stolen emails and false information.
The same information was posted several times by the accounts and 'liked' to boost the interactivity.
Yet it was only five months ago that Mark Zuckerberg, the chief executive of the social media site said it was "a pretty crazy idea" that fake news on Facebook influenced the election.
The company now claims that nations and organisations are using Facebook as a platform to spread incorrect information for geopolitical reasons.
But a line in the report says: "The reach of known operations during the US election of 2016 was statistically very small compared to overall engagement on political issues."
Facebook says it is now taking measures to fight this spread of information, by suspending and deleting accounts which are believed to be false.