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ISO 27001 Control 5.34: Privacy and Protection of PII

Protecting Privacy and Safeguarding PII: Organisational Best Practices

The preservation of privacy and protection of personally identifiable information (PII) are critical to maintaining organisational trust and meeting legal, statutory, and regulatory obligations. This article outlines best practices to ensure PII is handled securely and in compliance with applicable requirements.


Purpose of Privacy and PII Protection

The primary objectives of protecting privacy and PII include:

  • Ensuring compliance with legal, statutory, regulatory, and contractual obligations.

  • Safeguarding the confidentiality, integrity, and availability of PII.

  • Mitigating risks associated with data breaches and misuse of personal data.


Core Guidelines for Privacy and PII Protection

Organisations should implement the following measures to protect PII effectively:


1. Establish a Privacy Policy

  • Develop and communicate a topic-specific policy on privacy and PII protection to all relevant interested parties.

  • Ensure the policy aligns with applicable laws, regulations, and industry standards.


2. Implement Clear Procedures

  • Define procedures for collecting, processing, storing, and disposing of PII securely.

  • Communicate these procedures to personnel, service providers, and other relevant parties.


3. Assign Responsibility

  • Appoint a dedicated privacy officer or equivalent role to oversee privacy and PII protection efforts.

  • Ensure the privacy officer provides guidance on roles, responsibilities, and compliance requirements.


4. Apply Technical and Organisational Measures

  • Implement access controls to restrict unauthorized access to PII.

  • Use encryption and other security measures to protect PII during storage and transmission.

  • Conduct regular risk assessments to identify vulnerabilities and strengthen controls.


5. Provide Training and Awareness

  • Educate personnel on privacy and data protection practices, including their responsibilities for handling PII.

  • Include real-world examples and scenarios in training to enhance understanding.


Addressing Regulatory Requirements

Organisations must ensure compliance with national and international laws governing PII. Key considerations include:

  • Adhering to data protection regulations such as GDPR, HIPAA, or CCPA.

  • Establishing protocols for obtaining consent and managing data subject requests (e.g., access, correction, or deletion of PII).

  • Documenting compliance efforts to demonstrate accountability.


Managing PII Risks and Breaches


1. Identify and Mitigate Risks

  • Conduct regular data protection impact assessments (DPIAs) to evaluate privacy risks.

  • Implement mitigating controls to address identified vulnerabilities.


2. Prepare for Data Breaches

  • Develop and test an incident response plan for managing data breaches.

  • Establish communication protocols for notifying affected individuals and regulatory authorities.

  • Analyse breaches to identify root causes and prevent recurrence.


Leveraging International Standards

Organisations can enhance their privacy practices by referencing internationally recognised frameworks, including:

  • ISO/IEC 29100: A framework for protecting PII within ICT systems.

  • ISO/IEC 27701: Guidelines for establishing a privacy information management system.

  • ISO/IEC 27018: Standards for PII protection in public cloud environments.


Conclusion

Protecting privacy and safeguarding PII is a critical responsibility for organisations. By implementing robust policies, clear procedures, and effective controls, organisations can mitigate privacy risks, ensure compliance, and build trust with stakeholders. Proactive privacy management not only reduces the likelihood of breaches but also strengthens operational resilience and enhances reputation in today’s data-driven landscape.

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About the author

Alan Parker is an IT consultant and project manager who specialises in IT governance, process implementation, and project delivery. With over 30 years of experience in the industry, Alan believes that simplifying complex challenges and avoiding pitfalls are key to successful IT management. He has led various IT teams and projects across multiple organisations, continually honing his expertise in ITIL and PRINCE2 methodologies. Alan holds a degree in Information Systems and has been recognised for his ability to deliver reliable and effective IT solutions. He lives in Berkshire, UK, with his family.

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