nl en



Admission requirements

Not applicable.


Livelihoods of modern societies depend on security of their infrastructure. Almost every day we hear news about recent data breaches at organizations and attacks on critical infrastructure. As users, we are constantly worried about security of our computers and privacy of our personal data. It is thus essential to know the fundamental security concepts and understand which protections are afforded to us by our systems. Moreover, for computer scientists it is necessary to be familiar with the key principles of secure design. This is what this course is about.

We will study the core security principles and requirements, and we will investigate the main pitfalls in system and software design (vulnerabilities) and the established techniques to ensure security (defenses). We will approach security at different levels: from basic cryptographic schemes and software vulnerabilities to secure systems and security in organizations. We will also discuss privacy, and we will look into legal and ethical aspects in security.

The course will include practical, hands-on exercises and assignments with real security tools and vulnerable systems.


Timetable Computer Science

Course objectives

  • Students are familiar with the main security concepts and principles.

  • Students can identify technical security requirements for different types of systems and can propose suitable protection mechanisms.

  • Students are familiar with a range of security tools and techniques.

  • Students understand the socio-technical view on security and privacy that encompasses not only technical but also societal aspects.

Mode of instruction

Lectures, assignments, exam

Assessment method

  • There will be 3 practical assignments and written exam, each evaluated on scale 0-10

  • At least 3.0 must be obtained for each assignment

  • Final grade = 50% exam + 50% average assignments

  • Both components need to be at least 5.0, and the final grade should be at least 5.5 to pass the course.

  • It will be possible to re-take the exam.

  • In case the teaching process is still disrupted by the coronavirus pandemic, the assessment method might be subject to change.

The teacher will inform the students how the inspection of and follow-up discussion of the exams will take place.


Literature and reading materials will be announced during the course.

Signing up for classes and exams

Aanmelding voor vakken verloopt via uSis. Hiervoor is de uSis-code van het vak nodig, die te vinden zijn in de Studiegids. Meer info over het inschrijven voor vakken of tentamens is hier te vinden.


In MyTimetable kun je alle vak- en opleidingsroosters vinden, waarmee jij je persoonlijke rooster kunt samenstellen. Onderwijsactiviteiten waarvoor je in uSis staat ingeschreven, worden automatisch in je rooster getoond. Daarnaast kun je My Timetable gemakkelijk koppelen aan een agenda-app op je telefoon en worden roosterwijzigingen automatisch in je agenda doorgevoerd; bovendien ontvang je desgewenst per e-mail een notificatie van de wijziging.

Vragen? Bekijk de video-instructie, lees de instructie of neem contact op met de ISSC helpdesk.


Inschrijving voor vakken verloopt via uSis. Wanneer je je hier inschrijft voor een bepaald vak krijg je automatisch ook toegang tot de omgeving van dit vak via Brightspace.

Voor meer informatie over Brightspace kun je op deze link klikken om de handleidingen van de universiteit te bekijken. Bij overige vragen of problemen kan contact opgenomen worden met de helpdesk van de universiteit Leiden.


Onderwijscoördinator Informatica, Riet Derogee.