Personal data protection in blockchain

Steve Wright and Ezgi Pilavci
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Steve Wright: PrivacyCulture Ltd, UK
Ezgi Pilavci: PrivacyCulture, UK

Journal of Data Protection & Privacy, 2019, vol. 3, issue 1, 43-47

Abstract: This paper analyses the challenges of blockchain technology in terms of General Data Protection Regulation compliance. It focuses on the great promise of transparency in blockchain systems, its tamper-proof nature and the question of ‘Who will be the data controller in blockchain transactions?’ In blockchain systems, data is distributed across all the nodes’ (who created the blocks) computers at different locations. This makes it difficult to amend the data in the blocks as all the nodes’ participation and approval are needed. While this feature provides transparency and resilience, it is a major challenge on exercising the rights of rectification or deletion. Blockchain systems can be created as private and public, and particularly in public blockchain systems, it can be challenging to allocate and determine the liability of the parties and determine the data controller. We look into the challenges in these areas in a nutshell and very briefly mention how blockchain can benefit from the privacy by design concept.

Keywords: blockchain; privacy; compliance; tamper-proof; individual rights (search for similar items in EconPapers)
JEL-codes: K2 (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:aza:jdpp00:y:2019:v:3:i:1:p:43-47

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