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ISO/TR 23244:2020 Blockchain and distributed ledger technologies

What is ISO/TR 23244:2020 Blockchain and distributed ledger technologies — Privacy and personally identifiable information protection considerations?

ISO/TR 23244:2020 Blockchain and distributed ledger technologies is a technical report which provides guidance and considerations for organizations and individuals who are using or planning to use blockchain and distributed ledger technologies while taking into account privacy and the protection of personally identifiable information (PII). It aims to help users of these technologies understand the potential privacy risks as well as challenges associated with them and offers recommendations on how to mitigate those risks.

Some of the key topics covered in ISO/TR 23244:2020 Blockchain and distributed ledger technologies include:

Overview of Blockchain and Distributed Ledger Technologies: An introduction to the fundamental concepts of blockchain and distributed ledger technologies to establish a common understanding.
Privacy and PII Considerations: Detailed information about the privacy concerns related to blockchain and distributed ledger technologies, including the risks associated with the immutable and transparent nature of blockchain.
Regulatory and Legal Frameworks: Discussion of relevant privacy regulations and legal frameworks that organizations need to comply with when handling PII on blockchain platforms.
Privacy by Design: Recommendations on integrating privacy considerations into the design and development of blockchain solutions from the outset.
Data Minimization and Anonymization: Strategies for minimizing the amount of PII stored on the blockchain and techniques for anonymizing or pseudonymizing data when necessary.
Access Control and Authentication: Guidance on access control mechanisms and authentication methods to ensure that only authorized individuals or entities can access PII on the blockchain.
Consent Mechanisms: Considerations for obtaining and managing consent from data subjects when processing their PII on a blockchain.
Data Portability and Erasure: Recommendations on how to facilitate data portability and erasure in compliance with privacy regulations.
Auditability and Accountability: How to establish mechanisms for auditing and ensuring accountability in PII processing on the blockchain.
Risk Assessment and Mitigation: Techniques for conducting privacy impact assessments and risk assessments related to blockchain projects, along with strategies for mitigating identified risks.

ISO/TR 23244:2020 is a valuable resource for organizations and individuals looking to harness the benefits of blockchain and distributed ledger technologies while safeguarding the privacy and protection of personally identifiable information. It provides a framework for responsible and compliant use of these technologies in contexts where privacy is a concern.

Requirements of ISO/TR 23244:2020 Blockchain and distributed ledger technologies

ISO/TR 23244:2020 is a technical report that provides guidance and considerations for addressing privacy and personally identifiable information (PII) protection in the context of blockchain and distributed ledger technologies. While it doesn’t specify mandatory requirements like a formal standard, it offers recommendations and best practices to help organizations navigate privacy concerns when using these technologies.

Here are some of the key requirements and considerations outlined in ISO/TR 23244:2020:

Understanding Blockchain Technology: Organizations should have a clear understanding of how blockchain and distributed ledger technologies work, including their fundamental principles and features.
Privacy by Design: Integrate privacy considerations into the design and development of blockchain solutions from the outset. This includes implementing privacy-enhancing features and controls as part of the system architecture.
Data Minimization: Minimize the amount of personally identifiable information (PII) stored on the blockchain. Avoid storing unnecessary data and consider alternative approaches to handle sensitive information off-chain.
Data Anonymization/Pseudonymization: Implement techniques for anonymizing or pseudonymizing PII when it is necessary to store it on the blockchain. This helps protect the identities of data subjects.
Access Control: Establish robust access control mechanisms to ensure that only authorized individuals or entities can access PII on the blockchain. Implement strong authentication and authorization processes.
Consent Mechanisms: Obtain clear and informed consent from data subjects for processing their PII on the blockchain. Ensure that consent can be managed and revoked as necessary.
Compliance with Privacy Regulations: Stay informed about and comply with relevant privacy regulations and legal frameworks that govern the handling of PII. This may include data protection laws like GDPR (General Data Protection Regulation) or local privacy regulations.
Data Portability and Erasure: Enable data subjects to exercise their rights regarding data portability and erasure. Provide mechanisms for individuals to request their data and have it removed from the blockchain.

Also

Auditability and Accountability: Implement mechanisms for auditing and ensuring accountability in PII processing on the blockchain. Maintain records of data processing activities and access.
Risk Assessment: Conduct privacy impact assessments and risk assessments to identify and mitigate potential privacy risks associated with blockchain projects.
Security Measures: Implement strong security measures to protect PII from unauthorized access, including encryption and secure key management.
Training and Awareness: Train personnel involved in blockchain projects about privacy best practices and ensure they are aware of their responsibilities in handling PII.
Incident Response: Develop an incident response plan to address privacy breaches or incidents involving PII on the blockchain. This plan should include procedures for notifying affected parties and regulatory authorities.
Documentation: Maintain comprehensive documentation related to PII processing on the blockchain, including data maps, consent records, and risk assessments.

ISO/TR 23244:2020 emphasizes the importance of a privacy-centric approach when using blockchain and distributed ledger technologies. While it doesn’t set mandatory requirements, organizations can use these recommendations to establish privacy safeguards and reduce the risks associated with handling PII on blockchain platforms.

Benefits of ISO/TR 23244:2020 Blockchain and distributed ledger technologies

ISO/TR 23244:2020, which provides guidance on privacy and personally identifiable information (PII) protection considerations in the context of blockchain and distributed ledger technologies, offers several benefits to organizations and individuals using or considering the use of these technologies. Some of the key benefits include:

Improved Privacy Compliance: ISO/TR 23244 helps organizations better understand and address privacy concerns related to blockchain. By following the recommendations, organizations can enhance their compliance with privacy regulations such as GDPR, HIPAA, or other data protection laws.
Data Minimization: The guidance encourages organizations to minimize the amount of PII stored on the blockchain. This not only reduces the risk of data breaches but also aligns with the principle of collecting only the data that is necessary for a specific purpose.
Risk Mitigation: The document provides strategies for conducting privacy impact assessments and risk assessments specific to blockchain projects. This enables organizations to identify and mitigate potential privacy risks early in the development process.
Enhanced Security: By emphasizing access control, encryption, and secure key management, ISO/TR 23244 helps organizations implement robust security measures to protect PII on the blockchain. This can reduce the risk of unauthorized access and data breaches.
Privacy by Design: The guidance promotes the integration of privacy considerations into the design and development of blockchain solutions from the start. This “privacy by design” approach can result in more privacy-respectful systems and reduce the need for costly retroactive privacy measures.
Transparent Consent: It provides recommendations for obtaining clear and informed consent from data subjects. Transparent consent mechanisms can build trust with users and demonstrate a commitment to respecting their privacy.
Data Portability and Erasure: ISO/TR 23244 encourages the implementation of mechanisms for data portability and erasure, enabling individuals to exercise their rights under data protection regulations. This promotes transparency and user control.

And

Accountability: Organizations can establish mechanisms for auditing and ensuring accountability in PII processing on the blockchain. This can help demonstrate compliance with privacy regulations and build trust with stakeholders.
Reduced Legal and Reputation Risks: By following the guidance, organizations can reduce legal risks associated with non-compliance with privacy regulations. Additionally, a commitment to privacy can enhance an organization’s reputation and trustworthiness.
Efficient Data Management: Properly managing PII on the blockchain can result in more efficient data management processes. This can include streamlined access, retrieval, and data governance.
Increased Adoption: As privacy and data protection become increasingly important considerations in the adoption of blockchain technologies, adhering to ISO/TR 23244 can help organizations navigate these challenges and facilitate broader adoption of blockchain solutions.

Who needs ISO/TR 23244:2020 Blockchain and distributed ledger technologies — Privacy and personally identifiable information protection considerations?

ISO/TR 23244:2020 is a Technical Report (TR) published by the International Organization for Standardization (ISO) that provides guidance on privacy and personally identifiable information (PII) protection considerations in the context of blockchain and distributed ledger technologies (DLT). This document is intended for a wide range of stakeholders involved in the development, deployment, and use of blockchain as well as DLT systems.

Some of the key groups that can benefit from ISO/TR 23244:2020 include:

Blockchain Developers and Architects: Those who design and build blockchain and DLT systems need to understand how to incorporate privacy and PII protection mechanisms into their designs.
Privacy Officers and Data Protection Experts: Privacy professionals responsible for ensuring compliance with data protection regulations can also use this document to gain insights into how blockchain and DLT technologies impact privacy and to develop strategies for mitigating risks.
Regulators and Policymakers: Government agencies and regulators may refer to ISO/TR 23244:2020 when developing regulations and policies related to the use of blockchain and DLT in sectors where privacy and data protection are paramount.
Businesses and Organizations: Enterprises that plan to implement blockchain or DLT solutions for various purposes (e.g., supply chain management, healthcare, finance) can use this guidance to assess the privacy implications and adopt best practices for protecting PII.
Researchers and Academics: Academics and researchers studying blockchain and DLT can use this document as a reference for their work in understanding the privacy challenges and solutions associated with these technologies.
Consumers and Data Subjects: Individuals whose personal information may be processed on blockchain or DLT systems have a vested interest in understanding how their data is protected and can refer to this document to gain insights into privacy considerations.
Consultants and Advisors: Professionals providing advisory services related to blockchain and DLT can also use ISO/TR 23244:2020 as a resource to assist their clients in addressing privacy and PII protection issues.

In summary, ISO/TR 23244:2020 Blockchain and distributed ledger technologies is a valuable resource for anyone involved in or impacted by the use of blockchain and DLT technologies, as it offers guidance and considerations for maintaining privacy and protecting personally identifiable information within these systems. It helps stakeholders navigate the complex landscape of blockchain and DLT while ensuring compliance with privacy regulations and best practices.

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