ISO 27002 Lead Manager study materials
ISO 27002 Lead Manager study resources

ISO 27002 Lead Manager key terms

ISO 27002 Lead Manager · Get comfortable with the vocabulary.

Confidentiality, integrity and availability (CIA triad)

The three core information security properties: information is accessible only to those authorised to have access, it is accurate and complete, and it is accessible when required by authorised users.

Related: Information security, Privacy
Information security

Preservation of confidentiality, integrity and availability of information, and may additionally involve other properties such as authenticity, accountability, non-repudiation and reliability.

Related: Confidentiality, integrity and availability (CIA triad), Information security event
Cybersecurity

Safeguarding of people, society, organisations and states against digital risk, covering the convergence of information security with the protection of networks, systems and the physical world they control.

Related: Information security, Threat
Privacy

Freedom from intrusion into the private life or affairs of an individual, and the ability of that individual to control information about themselves and how it is collected and used.

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

Any information that relates to an identified or identifiable natural person, or that can be linked to one, including identifiers, contact details, location data and online identifiers.

Related: Privacy, Data subject
Privacy principles

High-level rules that guide how personal data should be handled, such as lawful and fair collection, purpose limitation, data minimisation, accuracy, storage limitation, security and accountability.

Related: Privacy, Personally identifiable information (PII)
Asset

Anything that has value to an organisation, including information, physical items, services, people, software and intangible items such as reputation and brand image.

Related: Information asset owner, Risk
Threat

A potential cause of an unwanted incident that may result in harm to a system or organisation, such as a malicious actor, a natural event or an accidental error.

Related: Vulnerability, Risk, Information security event
Vulnerability

A weakness of an asset or control that can be exploited by one or more threats, for example an unpatched application, a weak password policy or an unlocked server room.

Related: Threat, Risk
Risk

The effect of uncertainty on objectives, expressed in information security terms as the potential for loss or harm resulting from a threat exploiting a vulnerability.

Related: Risk assessment, Risk treatment, Vulnerability
Information security management system (ISMS)

A documented management system comprising policies, objectives, processes and resources that an organisation uses to protect its information assets and to manage information security risk systematically.

Related: Scope of the ISMS, Statement of applicability (SoA), Risk treatment plan
Scope of the ISMS

The documented boundaries of the management system, identifying the organisational units, locations, technologies, processes and interfaces that are included in and excluded from the ISMS.

Related: Information security management system (ISMS), Interested party
Interested party

A person or organisation that can affect, be affected by, or perceive itself to be affected by a decision or activity, such as customers, regulators, employees, suppliers or shareholders.

Related: Scope of the ISMS, Legal and regulatory requirements
Statement of applicability (SoA)

A documented statement describing which information security controls are relevant to the organisation, whether each is implemented, and the justification for inclusion or exclusion.

Related: Information security management system (ISMS), Control, Risk treatment plan
Control

A measure that modifies risk, implemented as a policy, procedure, process, practice, organisational structure or technical mechanism, and often described by what it is intended to achieve.

Related: Statement of applicability (SoA), Control objective, Residual risk
Control objective

A statement describing what an information security control, or group of controls, is intended to achieve, used to guide selection and to structure the control set in ISO/IEC 27002.

Related: Control, Statement of applicability (SoA)
Risk assessment

The overall process of risk identification, risk analysis and risk evaluation, used to understand how threats and vulnerabilities could affect assets and objectives.

Related: Risk, Risk treatment, Risk owner
Risk treatment

The process of selecting and implementing measures to modify risk, choosing among options such as avoiding, reducing, sharing or retaining the risk and weighing costs and benefits.

Related: Risk assessment, Residual risk, Risk treatment plan
Residual risk

The risk that remains after controls have been applied, which should be compared with the organisation's risk acceptance criteria and formally accepted by an accountable party.

Related: Risk treatment, Risk owner, Control
Risk owner

The person or entity with the accountability and authority to manage a risk, including approving treatment options and accepting residual risk within defined tolerances.

Related: Risk treatment, Residual risk, Information asset owner
Risk treatment plan

A documented plan that records selected risk treatment options, the controls to be implemented, responsible parties, resources, deadlines and expected performance measures.

Related: Risk treatment, Statement of applicability (SoA), Performance measurement
Organisational controls

The ISO/IEC 27002 control theme covering governance, policies, roles, responsibilities, supplier relationships, incident management, business continuity and compliance obligations.

Related: People controls, Segregation of duties, Supplier relationship
People controls

The ISO/IEC 27002 control theme covering the human side of security, including screening, terms of employment, awareness and training, disciplinary process and remote working.

Related: Organisational controls, Security awareness, education and training, Screening
Information security policy

A documented set of high-level rules and direction, approved by management, that defines how the organisation protects information and provides a framework for setting control objectives.

Related: Topic-specific policy, Roles and responsibilities, Organisational controls
Segregation of duties

The practice of dividing tasks and privileges so that no single person can both commit and conceal an error or fraud, requiring collusion to bypass a control.

Related: Least privilege, Organisational controls
Roles and responsibilities

The defined allocation of information security duties across the organisation, ensuring that accountability for assets, risks and controls is assigned and communicated.

Related: Information asset owner, Information security policy
Information asset owner

The accountable person, often a manager, who is responsible for a defined set of information and for decisions about its classification, use, access and protection requirements.

Related: Asset, Information classification, Roles and responsibilities
Information classification

The process of assigning information to defined categories, such as public, internal, confidential or restricted, according to its sensitivity, value and legal or contractual requirements.

Related: Information asset owner, Labelling, Access control
Labelling

The practice of marking information and its carriers, in paper or electronic form, with their classification so that handling rules are visible to anyone who encounters them.

Related: Information classification, Acceptable use policy
Supplier relationship

The managed relationship with a third party providing products or services, including agreed security requirements, monitoring, incident notification, change management and exit arrangements.

Related: Supply chain, Organisational controls
Supply chain

The network of organisations, processes and technologies involved in producing and delivering products or services, whose information security practices can affect the organisation's own risk.

Related: Supplier relationship, Threat
Security awareness, education and training

A structured programme that gives personnel the knowledge and skills to recognise threats, follow policy and use information securely, refreshed periodically and tailored to roles.

Related: People controls, Phishing simulation
Screening

Pre-employment and ongoing verification of a candidate's or employee's background, qualifications and trustworthiness, proportionate to the sensitivity of the role and applicable law.

Related: People controls, Roles and responsibilities
Physical controls

The ISO/IEC 27002 control theme covering physical security perimeters, entry controls, protection against environmental threats, secure disposal and clear desk and clear screen rules.

Related: Technological controls, Clear desk and clear screen, Secure disposal
Technological controls

The ISO/IEC 27002 control theme covering technical measures such as access control, cryptography, logging, malware protection, vulnerability management, backup and network security.

Related: Physical controls, Access control, Logging
Access control

Controls that grant or deny access to information and systems based on defined rules, ensuring that only authorised entities can reach specific assets for approved purposes.

Related: Least privilege, Privileged access rights, Authentication
Least privilege

The principle that users and systems receive only the minimum access rights needed to perform their assigned tasks, and only for the period during which those tasks require it.

Related: Access control, Privileged access rights, Segregation of duties
Privileged access rights

Access rights that allow a user to administer systems, change configurations or bypass controls, which require stricter allocation, review and monitoring than ordinary user access.

Related: Least privilege, Access control, Logging
Authentication

The process of verifying a claimed identity, ideally using multiple factors such as something known, something held and something inherent to the person.

Related: Access control, Cryptography
Cryptography

The use of mathematical techniques to protect information, providing confidentiality through encryption and integrity or authenticity through hashing and digital signatures, governed by a key management policy.

Related: Authentication, Logging
Logging

The recording of events, such as user activity, exceptions and system changes, in protected logs that support detection, investigation, audit and legal evidence requirements.

Related: Monitoring, Information security event, Privileged access rights
Clear desk and clear screen

A rule requiring that papers, removable media and devices are secured when unattended and that screens are locked, reducing exposure of information to unauthorised viewing or loss.

Related: Physical controls, Labelling
Secure disposal

The controlled destruction or sanitisation of media and equipment at end of life so that information cannot be recovered by unauthorised parties.

Related: Physical controls, Asset
Information security event

An identified occurrence indicating a possible breach of security policy or a failure of controls, which must be logged, assessed and, where relevant, escalated as an incident.

Related: Information security incident, Logging, Threat
Information security incident

A single or series of unwanted or unexpected events that could lead to harm, requiring a defined response, containment, recovery and learning process.

Related: Information security event, Monitoring
Monitoring

Continuous or periodic observation of systems, networks and controls to detect anomalies, verify that safeguards operate as intended and provide evidence for review.

Related: Logging, Performance measurement, Internal audit
Performance measurement

The definition and use of metrics and indicators to determine whether information security controls and the management system achieve planned results and to support improvement decisions.

Related: Monitoring, Internal audit, Continual improvement
Internal audit

An independent, systematic examination of the ISMS and its controls against defined criteria, planned by risk and reported to management to drive corrective action.

Related: Management review, Performance measurement, Nonconformity
Management review

A periodic, top-management evaluation of the ISMS's suitability, adequacy and effectiveness, using defined inputs and producing decisions on improvement and resource needs.

Related: Internal audit, Continual improvement, Performance measurement
Nonconformity

A failure to meet a requirement, whether from the standard, the organisation's own policy or a legal obligation, which must be corrected and analysed for its cause.

Related: Corrective action, Internal audit
Corrective action

Action taken to eliminate the cause of a detected nonconformity or incident so that it does not recur, distinct from a correction that only fixes the immediate problem.

Related: Nonconformity, Continual improvement
Continual improvement

The recurring activity of enhancing the ISMS and its controls, using measurement, audit, incident learning and review results to increase the organisation's overall security performance.

Related: Performance measurement, Corrective action, Management review