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A Data-Driven Analysis of Blockchain Systems' Public Online Communications on GDPR

Sağlam, Rahime Belen and Aslan, Çağrı B. and Li, Shujun and Dickson, Lisa and Pogrebna, Ganna (2020) A Data-Driven Analysis of Blockchain Systems' Public Online Communications on GDPR. In: 2nd IEEE International Conference on Decentralized Applications and Infrastructures. IEEE. (In press) (KAR id:81277)

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After the European Union’s new General DataProtection Regulation (GDPR) became applicable in May 2018,concerns about the legal compliance of public blockchain systemswith rights guaranteed by GDPR have emerged, e.g., on the“right to be forgotten”. In order to better understand how theblockchain sector sees the challenges raised by GDPR and howsuch their communications could influence their users, this paperreports our data-driven analysis of GDPR-related public onlinecommunications of blockchain developers and service providers.Our analysis covers 314 public blockchain systems, and twodifferent online communication channels: legal documents in-cluding privacy policies, T&C (Terms and Conditions) documentsand other similar legal documents published on systems’ officialwebsites and public tweets of their official Twitter accounts.Our analysis revealed that only a minority (86/314≈27.5%)of the investigated blockchain systems had covered GDPR at leastonce using one or both communication channels. Among the 86systems, only 27 systems (8.6%) had at least one legal documentthat actually talks about GDPR for the corresponding blockchainsystem. We noticed a systematic lack of detail about why and howthe GDPR compliance issue was addressed, and most systemsmade questionable statements about GDPR compliance. Theresults are surprising considering that the GDPR was enactedin 2016 and has been in effect since May 2018.

Item Type: Book section
Uncontrolled keywords: GDPR, blockchain, distributed ledger, dataprotection, law, privacy, communication, transpareny
Subjects: K Law > K Law (General)
Q Science > QA Mathematics (inc Computing science) > QA 76 Software, computer programming, > QA76.76 Computer software
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > TK5101 Telecommunications > TK5105 Data transmission systems > TK5105.5 Computer networks
Divisions: Faculties > University wide - Teaching/Research Groups > Centre for Cyber Security Research
Faculties > Sciences > School of Computing > Security Group
Depositing User: Shujun Li
Date Deposited: 16 May 2020 12:37 UTC
Last Modified: 18 May 2020 13:56 UTC
Resource URI: (The current URI for this page, for reference purposes)
Li, Shujun:
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