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Much of the research and discourse on risks from artificial intelligence (AI) image generators, such as DALL-E and Midjourney, has centered around whether they could be used to inject false information into political discourse. We show that spammers and scammers—seemingly motivated by profit or clout, not ideology—are already using AI-generated images to gain significant traction on Facebook.

Through an online field experiment, we test traditional and novel counter-misinformation strategies among fringe communities. Though generally effective, traditional strategies have not been tested in fringe communities, and do not address the online infrastructure of misinformation sources supporting such consumption. Instead, we propose to activate source criticism by exposing sources’ unreliability.

Several social media employ or consider user recruitment as defense against misinformation. Yet, it is unclear how to encourage users to make accurate evaluations. Our study shows that presenting the performance of previous participants increases discernment of science-related news. Making participants aware that their evaluations would be used by future participants had no effect on accuracy.

As progress on vaccine rollout in the United States slowed down in Spring 2021, it became clear that anti-vaccine information posed a public health threat. Using text data from 5,613 distinct COVID misinformation stories and 70 anti-vaccination Facebook groups, we tracked highly salient keywords regarding anti-vaccine discourse across Twitter, thousands of news websites, and the Google and Bing search engines from May through June 2021, a key period when progress on vaccinations very clearly stalled.

The 2022 elections in Brazil have demonstrated that disinformation can have violent consequences, particularly when it comes from the top, raising concerns around democratic backsliding. This study leverages a two-wave survey to investigate individual-level predictors of holding electoral misinformation beliefs and the role of trust and information habits during the 2022 Brazilian elections.

Facebook has claimed to fight misinformation notably by reducing the virality of posts shared by “repeat offender” websites. The platform recently extended this policy to groups. We identified websites and groups that repeatedly publish false information according to fact checkers and investigated the implementation and impact of Facebook’s measures against them.

We studied the relationship between Facebook advertisements from Chinese state media on the global media environment by examining the link between advertisements and online news coverage of China by other countries. We found that countries that see a large increase in views of Facebook advertisement from Chinese state media also see news coverage of China become more positive.

We analyzed community guidelines and official news releases and blog posts from 12 leading social media and messaging platforms (SMPs) to examine their responses to COVID-19 misinformation. While the majority of platforms stated that they prohibited COVID-19 misinformation, the responses of many platforms lacked clarity and transparency.

Our study examines Facebook posts containing nine prominent COVID-19 vaccine misinformation topics that circulated on the platform between March 1st, 2020 and March 1st, 2021. We first identify misinformation spreaders and fact checkers,1fact checker in our study is defined as any public account (including both individual and organizational accounts) that posts factual information about COVID-19 vaccine or posts debunking information about COVID-19 vaccine misinformation.