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).

August 26, 2026

Online antisemitism and digital regulation: ISD’s submission to the Australian Royal Commission

This Dispatch contains an excerpt from an ISD expert report submitted to the Australia's Royal Commission on Antisemitism and Social Cohesion.

Antisemitism, Targeted Threats, Hate and Abuse

August 20, 2026

Lexical laundering: The mainstreaming of antisemitic neologisms from 4chan and forums

Antisemitism, Identity-Based Hate and Abuse, Misogyny, Targeted Threats, Hate and Abuse, Tech Accountability and Safety

July 23, 2026

Canadian nationalist group promotes self-proclaimed ‘Bigotfest’ on social media

Anti-Migrant, Antisemitism, Far-Right Extremism, Terrorism and Extremism

July 14, 2026

UFC terror plotters’ motivations raise questions about threat prioritization

Antisemitism, Hybrid Extremism and Nihilistic Violence, Terrorism and Extremism, Threat Analysis and Prevention

July 1, 2026

ISD’s Hannah Rose testifies before the Royal Commission on Antisemitism and Social Cohesion

Antisemitism

May 13, 2026

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

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

Further Reading

December 23, 2025

Australian Jewish leaders urge government action to combat antisemitism

The tragic attack at Bondi Beach prompted discussions about the rising levels of antisemitism in recent years and urgently needed government action.

Antisemitism

December 23, 2025

Bondi Beach: The hallmarks of an Islamic State attack 

We analyzed antisemitic threats, calls for violence, and IS-inspired attacks on Jewish, Christian, and holiday targets.

Antisemitism, Islamist Extremism, Threat Analysis and Prevention

December 22, 2025

Recent arrests in Toronto highlight Islamic State threat to Jewish community

Three Toronto men were charged with hate-motivated crimes targeting women and the Jewish community.

Antisemitism, Islamist Extremism

December 22, 2025

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

New ISD research finds antisemitism rising across US extremist spaces.

Antisemitism, Hybrid Extremism and Nihilistic Violence

October 10, 2025

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

Online reactions to the Manchester synagogue attack highlight how antisemitism has become increasingly normalised across digital platforms.

Antisemitism, Terrorism and Extremism

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

123…6 Next