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

October 4, 2024

Neo-Nazi accelerationists seek new digital refuge amid looming Telegram crackdown

ISD looks at an attempted migration of accelerationist neo-Nazis from Telegram to a new platform following the arrest of Telegram CEO Pavel Durov.

Antisemitism, Targeted Threats, Hate and Abuse

September 27, 2024

Content glorifying Hitler surges online amid growing historical revisionism

ISD found a rise in Hitler-glorifying content online after 7 October, part of a larger pattern of revisionist narratives.

Antisemitism, Far-Right Extremism

September 26, 2024

Alleged Patriot Front offshoot may be astroturfed by neo-Nazi accelerationists

The Texas Revolutionary Army – Patriot Front (TRA-PF) may be a front for neo-Nazi accelerationists recruitment.

Antisemitism, Far-Right Extremism, Terrorism and Extremism

August 8, 2024

Research Compilation on Online Antisemitism

This report summarises ISD's findings on online antisemitism & provides literature insights to support ISD's Coalition to Counter Online Antisemitism.

Antisemitism

August 8, 2024

Announcement: Development of Policy Roadmap to Counter Online Antisemitism in 2024

CCOA announces a Policy Roadmap: "Mainstreaming (Digital) Human Rights in 2024" to address the online antisemitism that leads to real-world violence.

Antisemitism

June 17, 2024

Examining antisemitic and anti-Muslim hate speech on Canadian YouTube channels in the aftermath of 7 October

This article summarises the findings of a topic modelling analysis of antisemitic and anti-Muslim hate speech on Canadian YouTube comments in the afte

Anti-Muslim, Antisemitism, Tech Accountability and Safety

June 14, 2024

Narratives of Hate: Post-7 October Antisemitism and Anti-Muslim Hate on Social Media

This report identifies and analyses the surge of both antisemitic and anti-Muslim hate speech in YouTube comments, with the aim of informing interventions and countermeasures.

Anti-Muslim, Antisemitism, Terrorism and Extremism

April 9, 2024

Workshop: Uniting against antisemitism; empowering transatlantic civil society responses across Latin America

In a panel hosted by ISD Digital Research Analyst Oscar Portillo-Mezaemphasised the importance of education in combating antisemitism.

Antisemitism

January 26, 2024

The Fragility of Freedom: Online Holocaust Denial and Distortion

This report, released ahead of Holocaust Memorial Day 2024, explores contemporary challenges of online Holocaust denial and distortion with contributi

Antisemitism, Information Warfare and Online Manipulation

January 21, 2024

Hannah Rose on the connection between antisemitism and the targetting of LGBTQ+ people

ISD Analyst Hannah Rose spoke to the Guardian about the antisemitic, anti-LGBTQ+ ideology behind the October 2022 attack at a Bratislava LGBTQ+ bar.

Anti-LGBTQ+, Antisemitism, Hybrid Extremism and Nihilistic Violence, Terrorism and Extremism

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