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.

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This ISD investigation examines the activity and influence of internet domains linked to Russian state-affiliated sanctioned media

A year after the worst far-right riots in recent British history, data shows that anti-migrant language are rife online.

The UK’s extremism threat is shifting toward decentralised online networks and hybrid ideologies, demanding a new violence prevention model.

The ‘no innocents’ rhetoric holds Palestinians collectively responsible for Hamas’s actions and has gained traction.

Operation Overload, a Russian-aligned information operation, failed to gain traction in the second quarter of 2025, despite a shift in tactics and tar

Anti-migrant sentiments have united former foes on both sides of the Irish border.

Catalysed by the 7/7 bombings, UK counter-terrorism focused on Islamist groups but now faces diverse threats.

This article examines how the Islamist threat in the UK has developed, shifted and persisted since the 7/7 London bombings 20 years ago.

Is terrorism proscription the proportionate policy response to a group like Palestine Action?

After two Romanian teens were charged in an attack on a girl in Ireland, online hate fueled violence in Northern Ireland—the latest in a wider trend.