At the Indiana University Observatory on Social Media, my colleagues and I study influence campaigns and design technical solutions—algorithms—to detect and counter them. State-of-the-art methods ...

Surveys show that the majority of Americans routinely wear masks. So why have some people taken the uncommon and unsafe position of objecting to masks and social distancing, despite scientific ...

If we type #food in the Instagram search bar, it will show countless hits, not to mention #foodie or other related hashtags. But why are culinary topics so popular on social media platforms? To ...

Foreign influence campaigns, or information operations, have been widespread in the run-up to the 2024 U.S. presidential election. Influence campaigns are large-scale efforts to shift public opinion, ...

Filippo Menczer receives funding from the Knight Foundation, Sloan Foundation, NSF, DoD, and the Swiss National Science Foundation. We have uncovered many examples of coordinated inauthentic behavior.