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External Auditor

What is External Auditor?

An independent professional or firm engaged to examine an organisation's financial statements, controls, or compliance with standards. External auditors provide objective assurance to stakeholders, regulators, and the public.

Audit

What the standards actually require on external auditor

Requirements naming external auditor across 6 standards, quoted from the control text.

External auditors review general and application IT controls as part of their opinion on the financial statements, may review IT controls under an internal audit outsourcing engagement, and have the scope, objectives, resources, time frame and reports of their...

ffiec-it-examination-handbook::AUD-06 · External Auditors (Audit) →
HKMA SPM2 controls

Guides the reporting obligations of external auditors under the Banking Ordinance: appointment, removal and resignation of auditors; auditors' reporting on banking returns (coverage, frequency, criteria for reporting errors);

hkma-spm::IC-3 · IC-3 Reporting Requirements Relating to Authorized Institutions' External Auditors under the Banking Ordinance →
FISMA1 control

Where the agency has an Inspector General under the Inspector General Act of 1978, the IG performs the evaluation or has it performed by an independent external auditor as the IG determines;

fisma::3555(b) · 3555(b) Evaluation by the Inspector General or an independent external auditor →

The Board must ensure a reliable financial reporting process for public and supervisory purposes, supported by clearly defined roles for the Board, Senior Management and the external auditor.

iais-insurance-core-principles-icps::7.7 · 7.7 A reliable financial reporting process with defined roles for Board, management and external auditor →

ISO/IEC 17021-1:2015, 7.3 governs the use of external individuals, whether auditors or technical experts. For ISMS certification, a technical expert on the team works under an auditor's direction and must satisfy the minimum criteria used when choosing auditor...

iso-iec-27006-1-2024::7.3 · Use of individual external auditors and external technical experts →

Where the certification body uses individual external auditors or external technical experts for AIMS certification, it applies ISO/IEC 17021-1:2015, 7.3 (a written agreement committing them to the body's policies and procedures, confidentiality, impartiality...

iso-iec-42006-2025::7.3 · Use of individual external auditors and external technical experts →

Questions people ask about external auditor

What is External Auditor?
An independent professional or firm engaged to examine an organisation's financial statements, controls, or compliance with standards. External auditors provide objective assurance to stakeholders, regulators, and the public.
Why is External Auditor important for compliance?
External Auditor is a key concept in Audit. Understanding external auditor helps organizations meet regulatory requirements, reduce risk, and demonstrate due diligence during audits. Our compliance platform maps 1,016 frameworks with 316K cross-framework control mappings.
Which compliance frameworks address External Auditor?
External Auditor appears in the requirement text of FFIEC IT Examination Handbook, HKMA SPM, FISMA, IAIS Insurance Core Principles (ICPs), ISO/IEC 27006-1:2024. Across these standards we have identified 10 controls that name it directly, each linked to the control text on the compliance platform.
Where can I learn more about External Auditor?
Explore our compliance framework pages to see how external auditor applies across different standards and regulations. Our implementation guides provide step-by-step guidance, and the compliance platform offers AI-powered analysis of how this concept maps across 1,016 frameworks.

See how External Auditor applies across compliance frameworks

Our platform maps 1,016 frameworks with 316K cross-framework control mappings. Explore how this concept is addressed across standards.

Written and maintained by Gerard Blokdyk, The Art of Service.