EXIN PDPP study materials
EXIN PDPP study resources

EXIN PDPP key terms

EXIN PDPP · Get comfortable with the vocabulary.

Personal data

Any information relating to an identified or identifiable natural person, directly or indirectly, such as a name, identification number, location data, or an online identifier.

Related: Data subject, Identifiability, Processing
Data subject

The natural person to whom personal data relates and whose protection the privacy rules serve.

Related: Personal data, Data subject rights, Consent
Processing

Any operation performed on personal data, whether automated or not, including collection, recording, storage, alteration, retrieval, consultation, disclosure, and erasure.

Related: Personal data, Controller, Processor
Controller

The entity that alone or jointly determines the purposes and means of processing personal data, and therefore carries primary legal responsibility for it.

Related: Processor, Joint controllers, Accountability
Processor

An entity that processes personal data on behalf of a controller, acting only on documented instructions and without deciding the underlying purposes.

Related: Controller, Data processing agreement, Sub-processor
Joint controllers

Two or more entities that together determine the purposes and means of processing, sharing responsibility for compliance and for enabling data subject rights.

Related: Controller, Accountability
Sub-processor

A further processor engaged by a processor to carry out part of the processing, requiring controller authorisation and equivalent contractual obligations.

Related: Processor, Data processing agreement
Special categories of personal data

Sensitive data such as health, biometrics, genetic data, sexual orientation, religion, ethnicity, or political opinions, subject to stricter processing conditions.

Related: Personal data, Explicit consent, Processing
Identifiability

The extent to which a person can be singled out from data, directly or indirectly, using means reasonably likely to be used, including combining datasets.

Related: Personal data, Pseudonymisation, Anonymisation
Anonymisation

Irreversibly altering data so that no individual can be identified by any means reasonably likely to be used, taking it outside personal data rules.

Related: Pseudonymisation, Identifiability
Pseudonymisation

Replacing identifying attributes with codes so data can no longer be attributed to a person without additional separately kept information, reducing risk while remaining personal data.

Related: Anonymisation, Identifiability, Security of processing
Consent

A freely given, specific, informed, and unambiguous indication of the data subject's wishes by which they agree to processing of their personal data.

Related: Explicit consent, Withdrawal of consent, Data subject rights
Explicit consent

A clear, affirmative statement or action specifically confirming agreement, typically required for special categories of data or certain transfers.

Related: Consent, Special categories of personal data
Withdrawal of consent

The data subject's right to revoke consent at any time, after which processing based on that consent must stop unless another legal basis applies.

Related: Consent, Legal basis
Legal basis

One of the permitted grounds, such as consent, contract, legal obligation, vital interest, public task, or legitimate interest, that justifies processing personal data.

Related: Consent, Legitimate interest, Purpose limitation
Legitimate interest

A legal basis allowing processing that serves a genuine, lawful business or third-party interest, balanced against the rights and expectations of data subjects.

Related: Legal basis, Balancing test
Balancing test

The assessment weighing a controller's legitimate interest against the impact on data subjects, considering safeguards and reasonable expectations.

Related: Legitimate interest, Data protection impact assessment
Purpose limitation

The principle that personal data must be collected for specified, explicit, and legitimate purposes and not further processed incompatibly with those purposes.

Related: Data minimisation, Legal basis
Data minimisation

The principle that personal data must be adequate, relevant, and limited to what is necessary for the stated purposes.

Related: Purpose limitation, Storage limitation
Storage limitation

The principle that personal data may be kept in identifiable form only as long as needed for the purposes, after which it must be deleted or anonymised.

Related: Data minimisation, Retention schedule
Accuracy

The principle that personal data must be correct and, where necessary, kept up to date, with inaccurate data erased or rectified without undue delay.

Related: Data subject rights, Storage limitation
Accountability

The obligation to be able to demonstrate compliance with privacy principles through policies, records, assessments, and other documented evidence.

Related: Records of processing, Data protection impact assessment, Privacy by design
Privacy by design

Embedding privacy protections into systems, processes, and products from the outset rather than adding them afterwards.

Related: Privacy by default, Accountability
Privacy by default

Configuring systems so that, without user action, only the minimum personal data necessary for each purpose is processed and shared.

Related: Privacy by design, Data minimisation
Data protection impact assessment

A structured analysis of a high-risk processing activity, describing the flow of data, assessing risks to individuals, and defining mitigating measures before processing starts.

Related: Accountability, Balancing test, High risk processing
High risk processing

Processing likely to result in a significant risk to individuals' rights and freedoms, such as large-scale sensitive data use or systematic monitoring, triggering extra safeguards.

Related: Data protection impact assessment, Risk assessment
Risk assessment

The process of identifying threats to personal data and individuals, estimating likelihood and impact, and choosing controls to reduce risk to an acceptable level.

Related: High risk processing, Security of processing
Security of processing

The duty to apply appropriate technical and organisational measures, such as encryption and access control, to protect personal data against breaches and unauthorised access.

Related: Personal data breach, Pseudonymisation
Personal data breach

A security incident leading to accidental or unlawful destruction, loss, alteration, unauthorised disclosure of, or access to, personal data.

Related: Security of processing, Breach notification
Breach notification

The obligation to inform a supervisory authority, and sometimes affected individuals, about a personal data breach within defined time limits when risk thresholds are met.

Related: Personal data breach, Supervisory authority
Data subject rights

The rights individuals can exercise over their data, including access, rectification, erasure, restriction, portability, and objection.

Related: Subject access request, Erasure, Consent
Subject access request

A data subject's request to obtain confirmation of whether their data is processed and a copy of that data together with supporting information.

Related: Data subject rights, Erasure
Erasure

Also called the right to be forgotten, it lets a data subject require deletion of personal data when it is no longer necessary or processing is unlawful.

Related: Data subject rights, Storage limitation
Data protection officer

An independent expert responsible for advising on privacy obligations, monitoring compliance, and acting as contact point for data subjects and the supervisory authority.

Related: Supervisory authority, Accountability
Supervisory authority

An independent public body that monitors and enforces compliance with privacy law, handles complaints, and may impose corrective measures and fines.

Related: Breach notification, Data protection officer
Records of processing

An internal register describing processing activities, their purposes, data categories, recipients, retention periods, and security measures, used to evidence accountability.

Related: Accountability, Retention schedule
Retention schedule

A documented plan stating how long each category of personal data is kept and how it is disposed of once the period ends.

Related: Storage limitation, Records of processing
Data processing agreement

A contract setting out how a processor must handle personal data for a controller, including instructions, security, confidentiality, and assistance duties.

Related: Processor, Sub-processor
International transfer

Moving personal data to another country or international organisation, permitted only with a lawful transfer mechanism and appropriate safeguards.

Related: Adequacy decision, Processor
Adequacy decision

A formal determination by an authority that a destination country provides an essentially equivalent level of data protection, allowing transfers without extra safeguards.

Related: International transfer, Supervisory authority
Privacy statement

A public notice explaining what personal data an organisation collects, why, how long it keeps it, who receives it, and how individuals can exercise their rights.

Related: Transparency, Data subject rights
Transparency

The principle that processing must be explained clearly and openly to data subjects, using concise, intelligible language at the time data is collected.

Related: Privacy statement, Consent