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

September 26, 2023

The CCOA team hosted its digital launch, marking the kick-off of the working groups

Coalition to Counter Online Antisemitism (CCOA) team hosted a digital launch event.

Antisemitism

August 15, 2023

Sasha Havlicek on reactions against public interest research: “Who’s the censor now?”

ISD CEO Sasha Havlicek spoke with WIRED about the backlash ISD received after finding a spike in antisemitism after Elon Musk took over Twitter.

Antisemitism, Tech Accountability and Safety

July 21, 2023

‘Sustainability’ festival cancelled after activists expose it as a conspiracy theorist event

ISD’s Ciarán O’Connor spoke to VICE about the ‘Think Local Festival’ that was cancelled after organisers were exposed as being conspiracy theorists.

Antisemitism, Foreign Information Manipulation and Interference, Hybrid Extremism and Nihilistic Violence, Targeted Threats, Hate and Abuse, Terrorism and Extremism, Threat Analysis and Prevention

July 12, 2023

Far-Left Antisemitism

Far-left antisemitism has a long history and its impact continues to be felt today.

Antisemitism, Far-Left Extremism

May 17, 2023

Advocacy workshop: Experts convene on countering online antisemitism, holocaust denial and distortion

ISD, UNESCO, the World Jewish Congress and B’nai B’rith International are hosting an advocacy workshop.

Antisemitism

February 8, 2023

‘White Genocide’

The 'white genocide' conspiracy theory holds that there is a deliberate plot to erase whiteness.

Anti-Migrant, Anti-Muslim, Antisemitism, Far-Right Extremism, Hybrid Extremism and Nihilistic Violence

September 20, 2022

The ‘New World Order’

The 'New World Order' conspiracy theory claims a secretive elite aims to establish a global totalitarian government.

Antisemitism, Foreign Information Manipulation and Interference, Information Warfare and Online Manipulation

September 16, 2022

The Order of Nine Angles

A decentralised, Satanist, neo-Nazi organization that has spread and become increasingly influential among accelerationist neo-Nazi groups.

Anti-Migrant, Antisemitism, Far-Right Extremism, Foreign Information Manipulation and Interference, Hybrid Extremism and Nihilistic Violence, Targeted Threats, Hate and Abuse

May 5, 2022

An antisemitic conspiracy theory is being shared on Telegram to justify Russia’s invasion of Ukraine

This Dispatch explores how the antisemitic “Khazarian Mafia” conspiracy theory is being directed at the war in Ukraine.

Antisemitism, Foreign Information Manipulation and Interference, Information Warfare and Online Manipulation

April 8, 2022

ISD and B’nai B’rith, in partnership with UNESCO, release a guide on combatting online antisemitism

ISD- and B’nai B’rith International's, in partnership with UNESCO, guide on combatting antisemitism online was covered by the Jewish News Syndicate.

Antisemitism

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