The authors examine the handling of cybercrime cases by law enforcement officers, focusing on bottlenecks and potential improvements noted by experts in the field.

In this article, the authors analyse two major factors that deepen informality, namely multipolar geopolitics and the rise of non-state actors.

We investigate the buildup of galaxies from various vantage points. The first two chapters focus on the stellar content of galaxies, especially the distribution of stellar masses at birth and potential variations therein in various galactic environments.

On 22 June, Najib Amin defended the thesis 'State-building, lawmaking, and criminal justice in Afghanistan: a case study of the prison system’s legal mandate, and the rehabilitation programmes in Pul-e-charkhi prison'. The doctoral research was supervised by Jan Michiel Otto and Pauline Schuyt.

From 16 to 23 October 2025, the Faculty of Governance and Global Affairs (FGGA) will host the second edition of Cyber Week. Following last year’s success, we will once again shine a daily spotlight on our teaching and research in the field of cybersecurity through LinkedIn and Instagram. Today’s societal…

From 16 to 23 October 2025, the Faculty of Governance and Global Affairs (FGGA) will host the second edition of Cyber Week. Following last year’s success, we will once again shine a daily spotlight on our teaching and research in the field of cybersecurity through LinkedIn and Instagram. Today’s societal…

Leiden University is developing a major new building at Spui, in the heart of The Hague. Set in a former department store, the building will house around 4,000 students and staff from Leiden University, Delft University of Technology, the LUMC and Universities of the Netherlands. It’s expected to open…

Education for professionals. Leiden University offers a wide range of courses to boost your career, learn new skills, or broaden your knowledge.

Leiden Embedded & Real-time Computing (LERC) is an expert lab and leader in advanced research on embedded and real-time systems and software. The main mission of LERC is by its research to contribute in a highly innovative way to the system-level design of embedded and cyber-physical systems and software…

Healthcare robots and AI is a project that investigates the legal and regulatory aspects of healthcare robot and Artificial Intelligence (AI) technologies

The authors systematically search and review relevant definitions of Security by Design (SbD) in comparison with Privacy by Design (PbD).

To check whether the classroom scanners are secure, a ‘pen test’ was performed in the Lipsius building on Monday 28 March. This involved switching on the person counters for a day so that ethical hackers could try to gain access to the system.

The Leiden University’s Program for Cyber Norms, a research platform to investigate the development and implementation of law and policy applicable to uses of ICTs, in cooperation with the think-tank ICT4Peace conducted a global open consultation on how to implement the UN Group of Governmental Experts’…

Study information

Study information

Study information

Recently, Facebook and Cambridge Analytica have become highly polarizing figures in a data privacy scandal of global (and potentially historic) proportions. What does the Facebook and Cambridge Analytica controversy tell us about data privacy and cybersecurity in the age of Big Data?

Julia Prümmer, Tommy van Steen & Bibi van den Berg evaluate the effectiveness of cybersecurity training programs for end-users.

Rutger Leukfeldt, special chair of Governing Cybercrime, and colleagues investigate the link between Protection Motivation Theory (PMT) factors and self-protective online behavior.

Article by Dennis Broeders in the Journal of Cyber Policy on the (im)possibilities of addressing election interference and the public core of the internet in the UN GGE and OEWG.

This edited volume explores how artificial intelligence (AI) is transforming international conflict in cyberspace.

The housing crisis is affecting a substantial group of Dutch citizens and is one of the main election themes this year. How did things get this far and what should the new cabinet do in the coming four years to address the problems? Three Leiden researchers give their answer.

Risk has become one of the defining features of modern society. This course examines various types of safety and security risks, and how these are perceived and dealt with in a wide array of professional and academic fields, ranging from criminology, counter-terrorism and cyber security, to philosophy,…

Security and safety challenges rank among the most pressing issues of modern times. Challenges such as cyber-crime, terrorism, and environmental disasters impact the lives of millions across the globe. The course will introduce you to this broad theme in an increasingly complex world.

Leiden University's Academy Building (Rapenburg 73) will be less accessible for traffic and pedestrians on 28, 29 and 30 March because of filming by the BBC along the Rapenburg. Filming will only take place in public areas, not in the University buildings themselves. Some roads may be closed off to…

On an apparently normal cube a pattern of hollows and bulges appears when the cube is compressed. A method has been developed to design such three-dimensional structures and to construct these using simple building blocks. Publication in Nature.

From sleep problems to suicide attempts: the consequences of bullying can be very serious. The National Day against Bullying (in the Netherlands 19 April) is the opportunity for Leiden psychologist Mitch van Geel to share some recent insights from his research.

The Hans Franken Lecture honors the legacy of Prof. Dr. Mr. Hans Franken, a founding figure of eLaw in 1985.

Bij de Universiteit Leiden zet onze Onderzoeksgroep violence and violence prevention zich in voor het bevorderen van kennis en begrip op het gebied van geweld en geweldpreventie door middel van interdisciplinaire wetenschappen en innovatieve methodologieën. Onze faculteitsleden zijn toonaangevende…

At Campus The Hague, the University works closely with diverse parties and institutions in the city.

Towards the end of February, three Leiden University buildings will be assessed for their accessibility to people with a disability. The assessment will be carried out by Ongehinderd, a social enterprise committed to making the Netherlands more accessible. Its founder and director, Gerard de Nooij,…

This project investigates the capacities of EU institutions to coordinate the responses of member states to critical events.

This page provides updates on the protest today at the Academy Building and Hortus botanicus in Leiden.

Polarisation in our society is on the rise. What makes people increasingly radical? How do we protect ourselves from extremist, terrorist or criminal threats, be they physical or in the cyber world? And what role do intelligence services play in this?

Over the last couple of weeks, the opening of the Schouwburgstraat building during the weekends turned out to be a great success. Therefore, the opening hours will be extended. Starting Saturday 30 May 2015, the Schouwburgstraat building will be open from 10.00 to 23.00 hrs. on Saturdays and Sunday…

Modern optimization algorithms offer solutions for architectural decisions like spatial, structural and energy efficiency. A young computer scientist from Leiden University co-authored a paper that won the Best Paper Award at a leading conference in Krakow during the summer.

Why, then, do governments choose to disclose intelligence and what factors shape how they do so?

The world faces evolving challenges, from pandemics and natural disasters to technological risks and cyber threats. How we prepare for, respond to, and manage these issues is crucial. In this minor, you'll explore and address these grand challenges, seeking solutions for the future.

On 24 September 2020, Bernardo Ribeiro de Almeida defended his thesis 'Building land tenure systems: the political, legal, and institutional struggles of Timor-Leste'. The doctoral research was supervised by Prof. A.W. Bedner. Co-supervisor was Dr. C.I.M. Jacobs.

The transformation of the myriad of medieval kingdoms, principalities, local lordships, city-‘states’ and peasant ‘republics’ into ‘modern’ states, claiming some measure of sovereignty, remains one of the core themes of European history, because it gets down to the very root of the (idea on the) Europe…

Building cultures of legality: lawmaking and anxiety in the office of the Governor General.

The decades around 1800 constitute the seminal period of European nationalism. The lin­guistic corollary of this was the rise of standard language ideology, from Finland to Spain, and from Iceland to the Habsburg Empire. Amidst these international events, the case of Dutch in the Netherlands offers…

At around noon on Tuesday 9 April, a small fire started in the basement of Leiden University’s Snellius building. The fire brigade was quickly on the scene and soon extinguished the fire.