ISO/IEC 27034 Lead Application Security Auditor key terms
ISO/IEC 27034 Lead Application Security Auditor · Get comfortable with the vocabulary.
- Application Security Control (ASC)
- Related: Application Security Control Library, Targeted Level of Trust
A safeguard, measure, or countermeasure that reduces application security risk and is defined, measured, and verified as part of an application's security profile under ISO/IEC 27034.
- Application Security Control Library
- Related: Application Security Control (ASC), Tailoring
A structured repository of reusable security controls, each with attributes such as verification method, assurance level, and applicable technology, from which an application's controls are selected and tailored.
- Organizational Normative Framework (ONF)
- Related: Application Normative Framework (ANF), Application Security Control Library
The organization-wide set of security standards, policies, control libraries, and processes that provides the common foundation from which application-specific security frameworks are derived.
- Application Normative Framework (ANF)
- Related: Organizational Normative Framework (ONF), Tailoring
The application-specific subset of the organizational normative framework, containing the selected and tailored controls and verification requirements that apply to one particular application.
- Application Security Management Process (ASMP)
- Related: Application Security Audit, Audit Criteria
The defined, repeatable set of activities by which an organization plans, implements, verifies, and maintains application security across the application lifecycle, including roles, evidence, and decision points.
- Targeted Level of Trust (TLT)
- Related: Application Security Control (ASC), Risk-Based Audit Scope
The level of assurance an organization decides an application must achieve, balancing business risk, cost, and regulatory obligations, and which drives control selection and audit depth.
- Application Security Risk
- Related: Risk-Based Audit Scope, Threat Modeling
The potential for loss or harm arising from threats exploiting weaknesses in an application, expressed as a combination of likelihood and business impact.
- Threat Modeling
- Related: Application Security Risk, Application Security Control (ASC)
A structured method of identifying threats, attack paths, and trust boundaries for an application so that proportionate controls can be designed and later verified by audit.
- Security Assurance
- Related: Targeted Level of Trust (TLT), Audit Evidence
The justified confidence, supported by objective evidence, that an application's security controls operate as intended and meet the targeted level of trust.
- Tailoring
- Related: Application Normative Framework (ANF), Application Security Control Library
The documented process of adapting generic library controls to an application's specific technology, architecture, and risk context, recording justification for any additions, changes, or exclusions.
- Application Security Audit
- Related: Audit Criteria, Audit Evidence
An independent, systematic, and documented examination of an application's security controls and processes against defined criteria, producing conclusions and findings reported to interested parties.
- Audit Criteria
- Related: Application Normative Framework (ANF), Audit Evidence
The set of requirements, standards, policies, and control objectives against which audit evidence is evaluated to determine conformity, drawn from the applicable normative framework.
- Audit Scope
- Related: Risk-Based Audit Scope, Audit Plan
The documented boundary of an audit, identifying which applications, lifecycle phases, locations, technologies, and organizational units are included and excluded.
- Risk-Based Audit Scope
- Related: Audit Scope, Application Security Risk
A scoping approach that allocates audit effort proportionally to the likelihood and impact of application security risk, prioritizing high-value and high-exposure systems.
- Audit Plan
- Related: Audit Scope, Audit Sampling
A document describing audit objectives, scope, criteria, schedule, sampling approach, team roles, and resource allocation for a specific audit engagement.
- Audit Sampling
- Related: Audit Plan, Audit Evidence
The selection of a subset of controls, transactions, code, or records for examination, chosen so results can reasonably support conclusions about the whole population.
- Audit Evidence
- Related: Audit Criteria, Security Assurance
Records, statements of fact, observations, and test results that are relevant, verifiable, and sufficient to support audit findings and conclusions.
- Opening Meeting
- Related: Closing Meeting, Audit Plan
A formal meeting at audit start confirming scope, criteria, schedule, methods, and communication channels with the auditee and agreeing practical arrangements.
- Closing Meeting
- Related: Opening Meeting, Nonconformity
A formal meeting at audit conclusion at which the audit team presents findings, conclusions, and any nonconformities, and agrees follow-up responsibilities and timeframes.
- Conformity
- Related: Nonconformity, Audit Criteria
Fulfilment of a specified requirement, demonstrated when audit evidence shows that a control or process meets the applicable audit criteria.
- Nonconformity
- Related: Major Nonconformity, Corrective Action
A documented failure to fulfil a specified requirement, supported by objective evidence and classified by severity for reporting and corrective action purposes.
- Major Nonconformity
- Related: Minor Nonconformity, Nonconformity
A nonconformity that significantly undermines the effectiveness of controls or the management system, or that represents a systemic failure requiring immediate and substantial correction.
- Minor Nonconformity
- Related: Major Nonconformity, Corrective Action
An isolated or limited lapse that does not by itself invalidate the effectiveness of the control or management system but still requires documented correction.
- Observation
- Related: Nonconformity, Audit Finding
A statement of fact or improvement opportunity noted during an audit that does not constitute a nonconformity against the audit criteria but merits management attention.
- Audit Finding
- Related: Audit Evidence, Observation
The documented result of evaluating collected audit evidence against audit criteria, which may indicate conformity, nonconformity, or an opportunity for improvement.
- Corrective Action
- Related: Root Cause Analysis, Correction
Action taken to eliminate the cause of a detected nonconformity so that it does not recur, distinct from immediate containment or correction of the symptom.
- Correction
- Related: Corrective Action, Root Cause Analysis
Immediate action to eliminate a detected nonconformity, such as patching a vulnerable component, without necessarily addressing the underlying cause.
- Root Cause Analysis
- Related: Corrective Action, Correction
A structured investigation to determine why a nonconformity occurred, examining process, technology, and human factors so that corrective action addresses the true origin.
- Corrective Action Plan
- Related: Corrective Action, Follow-Up Audit
A documented plan specifying actions, owners, resources, and target dates for resolving a nonconformity and preventing recurrence, subject to auditor verification.
- Follow-Up Audit
- Related: Corrective Action Plan, Audit Finding
A subsequent verification activity confirming that corrective actions were implemented and are effective, closing findings when evidence demonstrates sustained resolution.
- Lead Auditor
- Related: Audit Team Competence, Audit Report
The auditor responsible for managing the audit team, agreeing scope and criteria, directing evidence collection, and delivering the final audit report and conclusions.
- Audit Team Competence
- Related: Lead Auditor, Technical Expert
The combination of education, training, technical application security skills, audit experience, and personal attributes that enables team members to perform assigned audit tasks effectively.
- Technical Expert
- Related: Audit Team Competence, Audit Evidence
A person with specialized application security knowledge, such as secure code review or penetration testing, who advises the audit team without acting as an auditor.
- Independence and Objectivity
- Related: Lead Auditor, Audit Evidence
The condition in which auditors are free from bias, conflict of interest, or undue influence, ensuring findings and conclusions are based solely on evidence against criteria.
- Audit Report
- Related: Audit Finding, Lead Auditor
The formal record of an audit describing scope, criteria, methods, findings, conclusions, and any nonconformities, distributed to those entitled to receive it.
- Confidentiality of Audit Records
- Related: Audit Report, Independence and Objectivity
The principle that audit evidence, reports, and working papers containing sensitive application details are protected, accessed only by authorized parties, and handled per legal and contractual obligations.