New York, NY, September 23, 2026 … The ADL (the Anti-Defamation League) Center on Extremism (COE) today launched a new research and resource hub that offers a deep dive into the online communities influencing young adults and children to engage in targeted and mass violence. ADL has tracked a disturbing rise in antisemitism and hate in online communities that glorify mass shooters, extremist killers and other perpetrators of mass violence, which further contributes to the…
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This report details the real human impact of some of the sites Cloudflare sustains and evaluates the systemic policy and enforcement gaps that allow them to remain operational.
Meta CEO Mark Zuckerberg posted a video to Facebook in January 2025 announcing dramatic changes to the company’s content moderation policies. In the clip, the 40-year-old executive shared his commitment to restoring free expression and to making sure that “people can share their beliefs and experiences” on Meta platforms. In reality, our research has shown that these policy changes have resulted in a dramatic increase of antisemitism and extremism on Meta’s…
ADL examined the strategic evolution of anti-Israel activism on U.S. campuses and provides recommendations for universities to respond proactively to changing tactics.
Over the past two years, Pennsylvania has faced a broad range of extremist incidents, driven by a diverse mix of ideological motivations and groups.
This ADL Center on Extremism report details and analyzes the domestic extremist-related murders in the United States in 2024
This report provides a snapshot of antisemitism and extremism in Oregon and Washington, highlighting key trends tracked by the ADL Center on Extremism.
In a new study, the ADL Center on Extremism found 1.8+ million unique pieces of extremist or hateful content on Steam.
The ADL Center on Extremism (COE) conducted a comprehensive analysis of violent antisemitism and anti-Israel content on Telegram following the 10/7 attacks.
A look at the 10 most prevalent trends in antisemitic messaging, tactics, and patterns post-Oct. 7
The ADL Center on Extremism tallied 2,087 anti-Israel incidents on U.S. college campuses between June 1, 2023, and May 31, 2024.
In 2023, ADL recorded its highest ever number of white supremacist propaganda incidents, with a total of 7,567 cases, a 12% increase from 2022.
This ADL Center on Extremism report details and analyzes the domestic extremist-related murders in the United States in 2023.
In 2023, ADL Center on Extremism tracked 15 extremists and their supporters who moved $142k of cryptocurrency to and/or from 22 different crypto companies.
ADL report on the hateful antisemitic conspiracy theories and tropes in political cartoons in the Arab press in the aftermath of Hamas’ Oct. 7 terrorist attacks
An analysis of the campus climate for Jewish students before and after the Hamas terror attacks on October 7, 2023 and concerning trends.
This report documents and analyzes the nature of, and increase in, right-wing terrorist incidents in the United States from 2017-2022
This report highlights the key extremist and antisemitic movements, trends, and incidents in Illinois between 2021 and 2022, and the first half of 2023.
An examination of extremist trends and threats in Texas (2021-2023)
Read ADL’s annual assessment of anti-Israel activism on U.S. college campuses.