A Russian company that specializes in fighting false information is getting ready to take legal action against the FBI. The company, called ANO Dialog, is upset about accusations that it spreads fake news and tries to undermine trust in the U.S. election process.

According to a report from the Russian business daily Kommersant, the U.S. government has labeled ANO Dialog as a “Russian state-sponsored actor.” This means that the U.S. believes the company is involved in spreading disinforma...