PECB CDPO study materials
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PECB CDPO key terms

PECB CDPO · Get comfortable with the vocabulary.

Personal data

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

Related: Data subject, Processing, Special categories of personal data
Data subject

The natural person to whom personal data relates and whose protection the legal framework is designed to secure, including their rights of access, correction, erasure, and objection.

Related: Personal data, Data subject rights
Processing

Any operation performed on personal data, whether automated or manual, such as collection, recording, organization, storage, adaptation, retrieval, consultation, disclosure, alignment, restriction, erasure, or destruction.

Related: Personal data, Data controller
Data controller

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

Related: Data processor, Joint controllers, Accountability
Data processor

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

Related: Data controller, Processor agreement, Sub-processor
Joint controllers

Two or more entities that jointly determine the purposes and means of processing, requiring a transparent arrangement that allocates responsibilities and gives data subjects a single point of contact.

Related: Data controller, Accountability
Sub-processor

A third party engaged by a processor to carry out part of the processing, which requires prior controller authorization and equivalent contractual data protection obligations.

Related: Data processor, Processor agreement
Processor agreement

A binding contract setting out the subject matter, duration, nature, purpose, and obligations of processing, including security measures, confidentiality, assistance duties, and deletion or return of data.

Related: Data processor, Sub-processor
Accountability

The principle that an organization must not only comply with data protection law but also be able to demonstrate that compliance through policies, records, assessments, and evidence.

Related: Records of processing activities, Data protection officer, Data protection impact assessment
Data protection officer

An independent advisor with expert knowledge of data protection law, tasked with monitoring compliance, advising on impact assessments, and acting as contact point for supervisory authorities and data subjects.

Related: Accountability, Data protection impact assessment, Supervisory authority
Supervisory authority

An independent public body established by law to monitor and enforce compliance with data protection rules, handle complaints, and impose corrective measures and administrative fines.

Related: Data protection officer, Administrative fine, Cross-border transfer
Lawful basis

A legal ground that must exist before processing begins, such as consent, contract performance, legal obligation, vital interests, public task, or legitimate interests.

Related: Consent, Legitimate interests, Purpose limitation
Consent

A freely given, specific, informed, and unambiguous indication of the data subject's wishes by which they agree to processing, expressed by a statement or clear affirmative action.

Related: Lawful basis, Data subject rights, Privacy notice
Legitimate interests

A lawful basis allowing processing that serves a genuine organizational or third-party interest, provided the interest is not overridden by the rights and freedoms of the data subject.

Related: Lawful basis, Legitimate interest assessment, Balancing test
Purpose limitation

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

Related: Lawful basis, Data minimization, Compatibility assessment
Data minimization

The principle that personal data must be adequate, relevant, and limited to what is necessary in relation to the purposes for which it is processed.

Related: Purpose limitation, Storage limitation, Privacy by design
Storage limitation

The principle that personal data must be kept in an identifiable form no longer than is necessary for the purposes of processing, with defined retention periods and deletion routines.

Related: Data minimization, Retention schedule, Right to erasure
Special categories of personal data

Sensitive data such as racial or ethnic origin, political opinions, religious beliefs, health, sex life, or biometric data, which generally requires a stricter legal basis and higher safeguards.

Related: Personal data, Data protection impact assessment, Pseudonymization
Pseudonymization

Replacing identifying attributes with artificial identifiers so that data can no longer be attributed to a person without additional information kept separately and protected by technical and organizational measures.

Related: Anonymization, Encryption, Data minimization
Anonymization

Irreversibly altering data so that no individual can be identified by any means reasonably likely to be used, taking account of singling out, linkability, and inference risks.

Related: Pseudonymization, Re-identification risk
Data subject rights

The entitlements of individuals over their data, including information, access, rectification, erasure, restriction, portability, and objection, each subject to defined conditions and deadlines.

Related: Data subject, Right to erasure, Data subject access request
Data subject access request

A request by an individual to confirm whether their data is processed and to obtain a copy together with information about purposes, recipients, retention, and rights.

Related: Data subject rights, Identity verification, Response deadline
Right to erasure

The right to have personal data deleted without undue delay where grounds such as withdrawal of consent, unlawful processing, or obsolescence apply, subject to legal retention exceptions.

Related: Data subject rights, Storage limitation, Retention schedule
Privacy notice

A transparent statement informing individuals about what data is collected, why, on what legal basis, for how long, who receives it, and how rights can be exercised.

Related: Consent, Transparency, Data subject rights
Cross-border transfer

The movement of personal data to another country or international organization, permitted only with an adequacy decision, appropriate safeguards, or a specific derogation.

Related: Adequacy decision, Standard contractual clauses, Supervisory authority
Standard contractual clauses

Pre-approved contractual terms that controllers and processors can incorporate into agreements to provide appropriate safeguards for transfers of personal data to third countries.

Related: Cross-border transfer, Transfer impact assessment, Adequacy decision
Data protection impact assessment

A structured process that describes processing, assesses necessity and proportionality, identifies risks to individuals, and defines measures to address high-risk processing before it begins.

Related: Risk assessment, Privacy by design, Prior consultation
Privacy by design

Embedding data protection into the design of systems, processes, and products from the outset, rather than adding controls after processing has already been implemented.

Related: Data protection by default, Data minimization, Data protection impact assessment
Data protection by default

Configuring systems and processes so that, without user intervention, only the personal data necessary for each specific purpose is processed and access is limited accordingly.

Related: Privacy by design, Data minimization
Risk assessment

Identifying, analyzing, and evaluating the likelihood and severity of harm to individuals from processing, then determining whether risks are acceptable or need treatment.

Related: Risk treatment, Risk register, Data protection impact assessment
Risk treatment

Selecting and applying options such as avoidance, reduction through controls, transfer, or acceptance to bring identified data protection risks within the organization's tolerance level.

Related: Risk assessment, Residual risk, Risk register
Residual risk

The level of risk that remains after planned or implemented controls have been applied, which must be documented and accepted by an accountable owner.

Related: Risk treatment, Risk register
Risk register

A maintained inventory recording identified data protection risks, their owners, ratings, treatment actions, target dates, and current status for monitoring and reporting.

Related: Risk assessment, Risk treatment, Residual risk
Records of processing activities

A structured register describing each processing operation, its purposes, categories of data and subjects, recipients, transfers, retention periods, and security measures.

Related: Accountability, Data controller, Retention schedule
Data protection management system

A documented framework of policies, roles, processes, controls, and reviews that an organization uses to govern data protection in a consistent and auditable way.

Related: Accountability, Data protection policy, Internal audit
Data protection policy

A top-level management statement defining commitments, principles, responsibilities, and the governance structure for protecting personal data across the organization.

Related: Data protection management system, Accountability
Data breach notification

The duty to inform the supervisory authority without undue delay where a breach poses a risk to individuals, and to inform affected individuals where the risk is high.

Related: Personal data breach, Incident response plan, Supervisory authority
Personal data breach

A security incident leading to accidental or unlawful destruction, loss, alteration, unauthorized disclosure of, or access to personal data, whether caused by attack, error, or negligence.

Related: Data breach notification, Incident response plan
Incident response plan

Documented procedures for detecting, containing, assessing, escalating, and remediating security incidents, including decision paths for notifying authorities and individuals.

Related: Personal data breach, Data breach notification