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Personal data Privacy and GDPR
As a university employee, you probably work with personal data. That is not just names and telephone numbers – it can also include things like cookies. How can you make sure you are working in a privacy-proof way?

Data storage IT and research
Your options for data storage may vary depending on factors such as size and sensitivity of the data or collaboration with partners outside the university. We are all responsible for data protection. To keep personal data as secure as possible, approved tools should be used to ensure safe processing…

Data stewards Helpdesks and contact
Do you have questions about data management? Please contact the data stewards:

Privacy and data breaches Working securely online
Any loss of control over stored personal data constitutes a potential data leak. In most cases this concerns stolen (or lost) digital files, but a stolen (or mislaid) printed list containing personal data also represents a data leak. It is important that you report any data leak.

Data processing register Privacy and GDPR
A data processing register is a record of which personal data you process and who you share this data with. If you collect personal data for your research, you must record this in the data processing register.

Data processing agreement Privacy and GDPR
If you bring in a (new) person who will be processing personal data for you, this person is not allowed to use this information for his or her own purposes. You need to formalise this in a data processing agreement. The university will usually have an agreement in place.

Research using personal data Privacy and GDPR
If your research project involves collecting private or otherwise sensitive data, you must ensure adequate data protection measures are taken. Research must be conducted in accordance with the General Data Protection Regulation (GDPR). In terms of patient data, for instance, when used for research carried…

Deleting personal data Privacy and GDPR
Individuals have the right to instruct the university to delete their personal data in a number of cases. For instance, if the university no longer needs the data, or if the person withdraws consent previously given.

Data Science Research Programme Research programme data science
Universities, companies, organisations and societies are increasingly facing enormous quantities of data. It is a great challenge to transform these Big Data into knowledge, which is why Leiden University has launched a University-wide Data Science Research Programme.

Storage and data recovery Hardware
As a standard, your workplace comes equipped with a limited amount of disk space. We offer a number of options for extending your disk space. In addition, ISSC can help you recover lost files. You can also securely store your files in the cloud via OneDrive and Teams. Whichever storage you use, be aware…

One-off data processing Privacy and GDPR
Are you handling personal data just once, for instance when taking the minutes of a meeting or organising an employee outing? You do not need to include this use in the data processing register if you stick to the following conditions.

Personal data: privacy and the GDPR
As an employee of Leiden University, you probably work with or come into contact with personal data. The concept of ‘personal data’ is core to the General Data Protection Regulation (GDPR). If you work with personal data, you must be able to explain clearly, comprehensively and in simple language how…

Data Management Plan course for PhD's Course
Didactics, Career development

How to find and reuse data Course

What to do in the event of a data breach Privacy and GDPR
Any loss of control over stored personal data is a potential data breach. Most cases involve stolen or lost digital files, but a stolen or lost printed list of personal data is also a data breach. It is important to report any data breach.

Workshop: How to write a Data Management Plan (DMP) Course
Research

Data Privacy Day: three tips for protecting your data Announcement - 28 January 2025
ICT, Security