Facebook uncovers Russia-funded misinformation campaign

Facebook says it has discovered a Russian-funded campaign to promote divisive social and political messages on its network.

The company said $100,000 (£77,000) was spent on about 3,000 ads over a two-year period, ending in May 2017.

The ads did not back any political figures specifically, but instead posted on topics including immigration, race and equal rights.

Facebook said it was co-operating with a US investigation into the matter.

The advertisements directed users towards around 470 accounts that spread false information or were otherwise in breach of Facebook’s terms and conditions, the site said.

“The ads and accounts appeared to focus on amplifying divisive social and political messages across the ideological spectrum,” the company said in a blog post published on Wednesday.

The accounts in question have now been shut down, Facebook’s chief security officer Alex Stamos added.

The campaign was uncovered as part of Facebook’s internal investigation into ways in which the network may have been abused during the last US presidential election campaign.

The site, and its founder Mark Zuckerberg, came under extremely heavy criticism for not taking the issue seriously in the days following President Donald Trump’s election win. Mr Zuckerberg dismissed the notion that “fake news” on Facebook swayed the election as “crazy”.

In Wednesday’s post, Mr Stamos went into detail about how the campaign was uncovered.

“[We] looked for ads that might have originated in Russia, even those with very weak signals of a connection and not associated with any known organized effort.

“This was a broad search, including, for instance, ads bought from accounts with US IP addresses but with the language set to Russian – even though they didn’t necessarily violate any policy or law.

“In this part of our review, we found approximately $50,000 in potentially politically related ad spending on roughly 2,200 ads.”

News of Facebook’s discovery came on the same day Facebook was accused of inflating its advertising reach.

According to a report in the Wall Street Journal, Facebook told potential advertising partners that it could reach 41m 18-24 year olds in the US. However, according to official US census data, there should only be 31m people of that age in the country.

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