FREE LEARNING PATH · DATA PROTECTION

Day 20: Personal Data Breaches

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LESSON 20 OF 30

Personal Data Breaches

Read the assigned provisions, attempt the diagnostics, then compare your reasoning with the model responses.

Today’s topicPersonal Data Breaches
Estimated time90-120 minutes
Primary Act references.40
Guide referenceGuide pp.5, 11 and Assessment 4

Learning Objectives

Explain and apply breach identification.

Explain and apply processor notification.

Explain and apply controller risk assessment.

Explain and apply 72-hour Commission notification.

Explain and apply high-risk communication and records.

Diagnostic Assessment

Attempt these questions before reading the model responses.

1. What is the principal compliance issue addressed by s.40?

Show model response

Model response: It is personal data breaches. The analysis should focus on breach identification and the connected statutory conditions.

2. Identify two concepts that must be considered when analysing personal data breaches.

Show model response

Model response: Any two of the following are relevant: breach identification, processor notification, controller risk assessment, 72-hour Commission notification.

3. Why should a DPO cite the exact section instead of relying only on a general privacy principle?

Show model response

Model response: The section contains the controlling conditions, limits and exceptions. A general principle may guide analysis but cannot replace the specific statutory test.

4. What evidence should an organisation retain when applying s.40?

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Model response: It should retain the facts considered, the statutory test, the decision, supporting records, responsible approval and any review or corrective action.

5. How should the organisation respond when the uploaded sources do not resolve a material detail?

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Model response: It should record the limitation and avoid inventing a requirement. The DPO should return to the full statutory wording and seek current authoritative material when permitted.

Structured Lesson

LEGAL RULE: The controlling statutory material for this lesson is s.40. Apply its precise language, conditions and exceptions to the facts.

1. Breach Identification

Breach identification is a central issue for this study day. The DPO should locate the exact statutory conditions in s.40, apply them to the particular processing activity and retain evidence supporting the conclusion.

The Guide ties the 72-hour rule to controller awareness and the statutory risk test. Every security incident does not automatically create the same notification obligation.

2. Processor Notification

Processor notification is a central issue for this study day. The DPO should locate the exact statutory conditions in s.40, apply them to the particular processing activity and retain evidence supporting the conclusion.

The Guide ties the 72-hour rule to controller awareness and the statutory risk test. Every security incident does not automatically create the same notification obligation.

3. Controller Risk Assessment

Controller risk assessment is a central issue for this study day. The DPO should locate the exact statutory conditions in s.40, apply them to the particular processing activity and retain evidence supporting the conclusion.

The Guide ties the 72-hour rule to controller awareness and the statutory risk test. Every security incident does not automatically create the same notification obligation.

4. 72-Hour Commission Notification

72-hour commission notification is a central issue for this study day. The DPO should locate the exact statutory conditions in s.40, apply them to the particular processing activity and retain evidence supporting the conclusion.

The Guide ties the 72-hour rule to controller awareness and the statutory risk test. Every security incident does not automatically create the same notification obligation.

5. High-Risk Communication And Records

High-risk communication and records is a central issue for this study day. The DPO should locate the exact statutory conditions in s.40, apply them to the particular processing activity and retain evidence supporting the conclusion.

The Guide ties the 72-hour rule to controller awareness and the statutory risk test. Every security incident does not automatically create the same notification obligation.

GUIDE GUIDANCE: The Guide assigns Day 20 to personal data breaches and requires study of s.40. Its practical emphasis is breach identification, processor notification, controller risk assessment.
TUTOR EXPLANATION: Use a five-step analysis: identify the processing facts, confirm the actor and role, locate the controlling section, test every condition and exception, then document the decision and evidence.

Nigerian Scenario and Model Analysis

A online retail business begins a project involving staff or customer personal data. The project raises questions about breach identification and processor notification. Identify the controller, any processor, the data subjects, likely personal data, the required statutory analysis under s.40, key risks and the compliance evidence that should be retained.

Show model response

Model analysis: The organisation determining why and how the project operates is normally the controller. A vendor acting only on documented instructions is normally a processor. Staff or customers are the data subjects. The DPO should inventory the data, apply s.40 to the stated purpose, document the decision, assign controls and retain evidence. The final conclusion depends on the precise facts and statutory conditions.

Lesson Summary

Day 20 establishes how a DPO should understand and apply personal data breaches. The legal starting point is s.40. The main operational lesson is to connect breach identification, processor notification, controller risk assessment to documented facts and evidence.

Ten Key Terms

TermWorking definition
ControllerA person or body that determines the purposes and means of processing personal data.
ProcessorA person or body that processes personal data on behalf of a controller.
Data SubjectThe identified or identifiable individual to whom personal data relate.
Personal DataInformation relating to an identified or identifiable individual.
ProcessingAn operation performed on personal data, including collection, use, storage, disclosure or deletion.
Personal Data BreachA security breach affecting the confidentiality, integrity or availability of personal data.
SecurityRisk-appropriate technical and organisational protection for personal data.
ProcessorA person or body that processes personal data on behalf of a controller.
ControllerA person or body that determines the purposes and means of processing personal data.
Data SubjectThe identified or identifiable individual to whom personal data relate.

Definitions are paraphrased for study. Check section 65 and the relevant operative provision for controlling wording.

Five Revision Questions and Responses

1. What provisions govern this lesson?

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Response: s.40

2. What are the principal concepts?

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Response: breach identification, processor notification, controller risk assessment, 72-hour Commission notification, high-risk communication and records.

3. What is the correct source hierarchy?

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Response: The Act is primary authority. The Guide supports learning and professional application. Tutor explanation assists interpretation without creating new law.

4. What is the central evidence requirement?

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Response: Record the facts, applicable test, conclusion, approval, controls and review trigger.

5. What common error should be avoided?

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Response: Do not assume a broad principle answers the issue. Test the exact conditions and exceptions in the assigned section.

Five Multiple-Choice Questions

1. Which source provides the primary statutory rule for Day 20?

A. The Guide

B. The Act

C. A workplace policy

D. A vendor contract

2. Which provision set should be consulted first?

A. Section 1 only

B. s.40

C. Section 65 only

D. No statutory provision

3. What should follow identification of the relevant section?

A. Assume compliance

B. Test conditions and exceptions

C. Ignore evidence

D. Use consent automatically

4. Which record best supports accountability?

A. An undocumented opinion

B. A reasoned decision record

C. A verbal assurance

D. A marketing brochure

5. If the sources do not resolve a detail, what should the learner do?

A. Invent a rule

B. State the limitation

C. Cite an unrelated law

D. Ignore the uncertainty

Show model response

Answer key: 1-B, 2-B, 3-B, 4-B, 5-B. Review the lesson citations before marking.

Practical Workplace Task

Prepare a one-page compliance record for a Nigerian organisation applying s.40. Include the processing purpose, actors, data subjects, personal data, statutory test, risks, decision, controls, owner, evidence and review date.

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Expected deliverable: A dated, approved record that links factual evidence to each applicable statutory condition and records any unresolved issue.

Three Flashcards

Front: Act reference for Day 20? | Back: s.40

Front: Central topic? | Back: Personal Data Breaches

Front: Best analysis habit? | Back: Facts → role → section → conditions → evidence.

Reread and Progress Record

Reread: s.40; Guide pp.5, 11 and Assessment 4.

Date completed________________Score______%
Strong areas________________Weak areas________________
Recommended revision________________ReadinessDeveloping / Competent / Ready

Cumulative Assessment 4

This checkpoint covers Days 16-20. Answer without consulting the model responses.

Explain and apply one central rule from Day 16, with its section citation and a Nigerian workplace example.

Explain and apply one central rule from Day 17, with its section citation and a Nigerian workplace example.

Explain and apply one central rule from Day 18, with its section citation and a Nigerian workplace example.

Explain and apply one central rule from Day 19, with its section citation and a Nigerian workplace example.

Explain and apply one central rule from Day 20, with its section citation and a Nigerian workplace example.

Show model response

Marking guide: 20 marks per response, allocated to correct section, accurate rule, application, evidence and clear conclusion.