ISO/IEC 27002 Manager study materials
ISO/IEC 27002 Manager study resources

ISO/IEC 27002 Manager key terms

ISO/IEC 27002 Manager · Get comfortable with the vocabulary.

Information security

The preservation of confidentiality, integrity, and availability of information, extended in current editions to include authenticity, accountability, non-repudiation, and reliability as properties worth protecting.

Related: Confidentiality, Integrity, Availability
Confidentiality

The property that information is not made available or disclosed to unauthorized individuals, entities, or processes. It is protected through classification, access control, encryption, and need-to-know rules.

Related: Access control, Information classification
Integrity

The property of accuracy and completeness of information and of the systems that process it. It guards against unauthorized modification, whether accidental or deliberate, throughout the information lifecycle.

Related: Availability, Logging
Availability

The property of being accessible and usable on demand by an authorized entity. It is supported by capacity management, redundancy, backup, and resilience arrangements against disruption.

Related: Business continuity, Backup
Cybersecurity

Safeguarding of people, society, organizations, and states against cyber risk. It covers the protection of information and systems in cyberspace, including the networks and infrastructure on which services depend.

Related: Information security, Cyber risk
Privacy

Freedom from intrusion into the private life or affairs of an individual, and the ability of individuals to control or influence what information about them is collected, stored, and shared.

Related: Personal data, Privacy principles
Personal data

Any information relating to an identified or identifiable natural person. Identifiability can arise from the data alone or from data combined with other information reasonably likely to be used.

Related: Personally identifiable information, Privacy principles
Personally identifiable information (PII)

Information that can be used to distinguish or trace an individual's identity, alone or when linked with other data. The term overlaps heavily with personal data and is used in many jurisdictions.

Related: Personal data, Data subject
Data subject

The individual to whom personal data relates. Privacy frameworks grant this person rights such as access, correction, and, in some jurisdictions, erasure or objection to processing.

Related: Personal data, Privacy principles
Privacy principles

High-level rules guiding how personal data should be handled, such as lawful and fair collection, purpose limitation, data minimization, accuracy, storage limitation, security, and accountability of the controller.

Related: Data subject, Privacy impact assessment
Privacy impact assessment (PIA)

A structured process that identifies and assesses privacy risks of a project, product, or process affecting personal data, and determines whether controls or design changes are needed before processing begins.

Related: Privacy principles, Risk assessment
Cyber risk

The combination of the likelihood of a cyber threat event and its consequences for the organization, its stakeholders, and possibly wider society. It is expressed and prioritized within the risk management framework.

Related: Risk assessment, Threat
Threat

A potential cause of an unwanted incident that may result in harm to a system or organization. Threats include adversarial actors, human error, and natural or environmental events.

Related: Vulnerability, Risk assessment
Vulnerability

A weakness in an asset or control that can be exploited by one or more threats. Vulnerabilities may be technical, procedural, or organizational in nature.

Related: Threat, Technical vulnerability management
Information security risk

The potential for loss or harm to the organization when a threat exploits a vulnerability of an information asset, considering the likelihood of occurrence and the business impact.

Related: Risk assessment, Risk treatment
Risk assessment

The overall process of risk identification, risk analysis, and risk evaluation. It establishes the organization's information security risk profile and informs which controls are needed.

Related: Risk treatment, Risk owner
Risk treatment

The process of selecting and implementing measures to modify risk, typically by avoiding, reducing, sharing, or retaining it, and then documenting the decision in a statement of applicability.

Related: Statement of Applicability, Residual risk
Residual risk

The risk remaining after risk treatment has been applied. It must be reviewed and formally accepted by the risk owner at a level consistent with the organization's risk criteria.

Related: Risk treatment, Risk owner
Risk owner

The person or entity with the accountability and authority to manage a particular risk, including approving treatment and accepting residual risk. Ownership should be explicit and recorded.

Related: Residual risk, Risk treatment
Control

A measure that modifies risk, including any process, policy, device, practice, or organizational structure. Controls may be preventive, detective, corrective, or directive in nature.

Related: Statement of Applicability, Control objective
Statement of Applicability (SoA)

A document describing the information security controls relevant to the organization's risk treatment, including the reasons for their inclusion or exclusion and their implementation status.

Related: Risk treatment, Control
Control objective

The statement of what a control or group of controls is intended to achieve. Objectives describe the desired outcome, while individual controls describe how that outcome is realized.

Related: Control, Control attribute
Control attribute

A property used to describe a control and support its selection and comparison, such as control type, information security properties, cybersecurity concepts, operational capabilities, and security domains.

Related: Control, Defence in depth
Defence in depth

The practice of layering multiple independent controls so that the failure of one does not immediately expose the asset. Layers may span governance, people, physical, and technological measures.

Related: Control, Segregation of duties
Information classification

Assigning information to categories according to sensitivity, value, legal requirements, and criticality, so that appropriate handling, labeling, and protection rules can be applied consistently.

Related: Confidentiality, Access control
Access control

Rules and mechanisms that ensure access to information and systems is granted only to authorized entities and only to the extent needed. It includes both logical and physical access.

Related: Least privilege, Privileged access rights
Least privilege

The principle that users and processes receive only the minimum access rights necessary to perform their tasks, reducing the damage that can result from error, misuse, or compromise.

Related: Access control, Segregation of duties
Segregation of duties

Separating conflicting tasks and responsibilities among different people or roles so that no single person can carry out and conceal an error or fraud.

Related: Least privilege, Defence in depth
Privileged access rights

Access rights that allow a user to configure, manage, or bypass controls on systems and data. Such rights are restricted, allocated on a need-to-use basis, and closely monitored.

Related: Access control, Logging
Identity management

The lifecycle processes by which identities are created, verified, maintained, and removed, ensuring that accounts map reliably to real people and services and are revoked when no longer needed.

Related: Access control, Authentication
Authentication

Verifying a claimed identity, commonly through knowledge, possession, or biometric factors. Multi-factor authentication combines factors from different categories to strengthen assurance.

Related: Identity management, Access control
Cryptography

The use of mathematical techniques to protect information, providing confidentiality, integrity, authentication, and non-repudiation. Its governance includes policy, key management, and legal considerations.

Related: Encryption, Key management
Key management

The lifecycle protection of cryptographic keys, covering generation, distribution, storage, use, rotation, recovery, and destruction, so that keys remain secret, correct, and available.

Related: Cryptography, Encryption
Encryption

Transforming readable data into an unintelligible form using an algorithm and key, so that only parties holding the correct key can recover the original content.

Related: Cryptography, Key management
Logging

Recording events and activities in systems and networks to create evidence for detection, investigation, and audit. Logs must be protected, retained, and reviewed in line with legal requirements.

Related: Monitoring, Integrity
Monitoring

Continuous or periodic observation of systems, networks, and behavior to detect anomalies, control failures, and security events, and to support timely response and decision-making.

Related: Logging, Incident management
Incident management

The structured process for detecting, reporting, assessing, responding to, and learning from information security incidents, with defined roles, communication paths, and escalation criteria.

Related: Monitoring, Business continuity
Business continuity

The capability of the organization to continue delivering products and services at acceptable levels during and after disruption, supported by continuity plans, resilience, and tested recovery arrangements.

Related: Availability, Backup
Backup

Copies of information and software kept so that originals can be restored after loss, corruption, or attack. Backups should be tested, protected, and stored separately from the source.

Related: Availability, Business continuity
Technical vulnerability management

The process of identifying, evaluating, and remediating weaknesses in systems and software, including patch management and configuration hardening, based on assessed risk and exposure.

Related: Vulnerability, Threat