For 20 years, ISD has delivered field-leading threat detection, analysis and real-world strategies to combat terrorism, extremism and authoritarianism - in all their ideological forms.

Antisemitism

Threats to Jewish communities and weaponised antisemitism are on the rise, driven by extremists, hostile governments and conspiracy theorists.

Combining our best-in-class digital research techniques with in-depth subject matter knowledge of extremist movements, ISD tracks antisemitism at scale and informs policymakers globally. We also build capacity amongst civil society groups through initiatives such as our Coalition to Combat Online Antisemitism (CCOA).

May 13, 2026

Building a strategic response to antisemitism in the UK in a changing threat landscape

Amid recent attacks on the Jewish community, this brief calls for a PM-led framework linking digital regulation, prevention & counter-extremism.

Antisemitism, Targeted Threats, Hate and Abuse, Tech Legislation and Regulation, Threat Analysis and Prevention

May 5, 2026

Amplifying Antisemitism: How Recommender Algorithms Serve Harmful Content to Children

Antisemitism, Recommender Systems and Algorithms, Tech Accountability and Safety

May 2, 2026

Recommendation systems and the rapid exposure to antisemitism online

Antisemitism, Recommender Systems and Algorithms, Tech Accountability and Safety

April 22, 2026

The impact of the war with Iran on antisemitic discourse

Antisemitism, Targeted Threats, Hate and Abuse, Tech Accountability and Safety

December 23, 2025

Australian Jewish leaders urge government action to combat antisemitism

Antisemitism

December 23, 2025

Bondi Beach: The hallmarks of an Islamic State attack 

Antisemitism, Islamist Extremism, Threat Analysis and Prevention

December 22, 2025

Recent arrests in Toronto highlight Islamic State threat to Jewish community

Antisemitism, Islamist Extremism

December 22, 2025

Antisemitism across the extremes: A deep-dive on US-based violent online networks

Antisemitism, Hybrid Extremism and Nihilistic Violence

October 10, 2025

The Manchester synagogue terrorist attack: A snapshot of online antisemitism and extremist exploitation

Antisemitism, Terrorism and Extremism

Further Reading

September 15, 2025

CCOA webinar | Training grounds for hate? Active clubs, radicalisation and antisemitism in sport

Hosted by the CCOA, a pan-European network coordinated by ISD, this event gathers expert speakers to discuss sport and radicalisation.

Antisemitism, Far-Right Extremism

April 14, 2025

The CCOA toolkit: Mainstreaming Digital Human Rights in Education and Civic Action to Combat Online Antisemitism

This toolkit empowers individuals to confront antisemitism online and offline by offering strategies to challenge hate and build digital resilience.

Antisemitism, Education

February 25, 2025

Goyim Defense League (GDL)

The Goyim Defense League is a neo-Nazi network promoting antisemitism, white supremacy and harassment through protests, flyers and online abuse.

Antisemitism, Far-Right Extremism

January 28, 2025

Mainstreaming Digital Human Rights: A pan-European Policy Roadmap to Combat Online Antisemitism

This paper outlines challenges of online antisemitism and proposes practical, pan-European policy steps based on insights from 42 interviews.

Antisemitism

January 27, 2025

Countering Holocaust Denial and Distortion: A Guide for Teachers

This guide helps teachers design lessons about the Holocaust to prevent denial, enhance understanding, and promote critical thinking, digital literacy

Antisemitism, Education, Training and Educational Resources

December 11, 2024

Bridging extremes: The intersection of neo-Nazi activism and accelerationism

Modern neo-Nazi accelerationism, influenced by James Mason's Siege, blends violence with activism.

Antisemitism, Far-Right Extremism, Targeted Threats, Hate and Abuse, Terrorism and Extremism

October 28, 2024

Antisemitismo en Línea: Herramientas para la Sociedad Civil

This Spanish guide, translated from English and enriched with LATAM case studies, aims to empower civil society.

Antisemitism

October 15, 2024

How extremists and politicians exploited Hurricane Helene to spread antisemitic hate & election conspiracies

ISD analysts found that misinformation during Hurricane Helene fueled antisemitic hate and election conspiracies, undermining public trust.

Antisemitism, Climate, Foreign Information Manipulation and Interference, Targeted Threats, Hate and Abuse

October 8, 2024

Hurricane Helene brews up storm of online falsehoods and threats

This Dispatch examines how Hurricane Helene mis- and disinformation spread online, with antisemitic hate and election conspiracies.

Antisemitism, Information Warfare and Online Manipulation, Targeted Threats, Hate and Abuse

October 8, 2024

Antisemitic misinformation targets US officials amid hurricane Helene recovery efforts

North Carolina officials and FEMA representatives responding to Hurricane Helene are targets of antisemitic mis- and disinformation.

Antisemitism, Climate, Targeted Threats, Hate and Abuse, Terrorism and Extremism

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