Case studies on pseudonymisation and anonymisation techniques and privacy enhancing technologies
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The Data (Use and Access) Act 2025 got Royal Assent on 19 June 2025. All the provisions affecting data protection law and the Privacy and Electronic Regulations Communications are now in force. The Department for Science and Innovation (DSIT) has set out the commencement plans. You can find more details on the Gov.uk website.
The following case studies are examples of how you could use or combine the techniques discussed in our guidance about privacy enhancing technologies (PETs).
If you are considering implementing PETs, these case studies will show you how you can do this in practice and what objectives you can achieve with these techniques. We do not require or encourage you to follow these techniques, they are simply examples of good implementation.
We have developed these case studies with organisations who use anonymisation and pseudonymisation techniques in innovative ways. These organisations collaborated with us voluntarily, and we did not pay or otherwise compensate them for doing so.
We will add further case studies as we develop them with organisations. If you are using PETs and you think other organisations would benefit from learning about how you use them, please contact our Technology team to discuss developing a case study.