https://www.cnet.com/news/facebook-proved-popular-with-russian-election-trolls-mueller/

The social networking giant was singled out in an indictment unsealed Friday that charged 13 Russian nationals and three Russian groups with interfering with the 2016 presidential election. The 37-page indictment detailed how Russians used stolen identities to pose as Americans on Facebook and Instagram, creating Facebook groups, buying divisive ads and posting inflammatory images.

While not accusing Facebook of any wrongdoing, the indictment detailed how critical the social media platform was to Russian efforts to disrupt the election. Facebook and its photo-sharing app Instagram were mentioned 41 times in the indictment, while Twitter was referred to nine times and YouTube only once.