First-Time ISO/IEC 27001 Audit | How to Avoid Common Nonconformities
Table of Contents
Introduction
When it comes to most organisations, the first audit they go through for ISO/IEC 27001 certification is a major eye-opener. Even though the organisation may have a good working Information Security Management System (ISMS) in place, auditors will always tend to find numerous voids in the documentation preparation and what is actually practiced. These voids, which they call nonconformities, can be as small as a checklist item being overlooked and as big as not having a defined process in place for a certification audit to be performed.
Learning what organisations as a whole are having trouble with during first-time audits, helps the organisation prepare simple and better. Although each organisation is unique, many patterns can be found in all of the industries. The ability to determine these patterns helps strengthen the ISMS of the organisation before an official audit. It also helps first-time auditees.
Why First-Time Audits Reveal Nonconformities
It is important to note that first-time audits are difficult. The ISMS is not done successfully on the first attempt. Nonconformities are the result of a presence of poor documentation in an ISMS, an absence of a risk treatment, or a lack of knowledge of the responsibilities that each of the employees has. A lack of knowledge of responsibilities results in a loss of accountability.
It is important to audit all of the evidence to ensure that the controls have been implemented with consistency and that the risk assessment process is current. The missing pieces, the pieces that are not implemented consistently, the pieces that are not integrated can identify a negative result. An organisation’s efforts to use their time on the audit.
Common Nonconformities Seen in Practice
Some nonconformities tend to recur during first audits of ISO/IEC 27001. These typically pertain to policies, risk, controls, awareness, and monitoring.
Policies That Do Not Reflect Reality
Policies may exist for an information security management system, but many of them do not actually exist for their operations. They can be generic, old, or lack approval from above, and auditors look for evidence showing policies, procedures, and organizational practices unified vertically. Without this, the credibility of the ISMS is diminished.
Gaps in Risk Assessment and Treatment
The core elements to be ISO/IEC27001 compliant is the well-formed Risk Assessment. Typical gaps include asset identification, missing threat, risk, and detail less ownership, in risk treatment plan. Justifications for implemented controls in the SoA must be explicit. Auditors will look for these connections.
Inconsistent Control Implementation
The existence of documented controls does not guarantee operational uniformity across departments or systems. Consider access controls, for example, which may be operational in one area but absent in others. Auditors will look for documented evidence of the operation and monitoring of controls.
Limited Awareness and Training
When staff awareness is lacking, a first-time audit will often identify employees who have little to no understanding of their obligations and the ISMS requirements. Absent training records and awareness of initiatives, evidence of an effective ISMS culture is difficult to obtain.
Insufficient Monitoring and Performance Evidence
Auditors increasingly focus on whether an organisation can measure and evaluate its ISMS. This includes monitoring activities, incident records, and key performance indicators. Missing or incomplete monitoring evidence often leads to nonconformities, even if controls exist.
Supplier and Third-Party Oversights
Supply chain and third-party management are often overlooked. Organisations may not categorise suppliers by risk, enforce contractual security obligations, or maintain clear offboarding procedures. Auditors consider third-party risk an integral part of the ISMS.
Common Nonconformities and Evidence Needed
| Nonconformity | Typical Issue | Evidence Auditors Expect |
|---|---|---|
| Policies not aligned with operations | Generic, outdated, or unapproved policies | Signed, reviewed policies reflecting actual practices |
| Risk assessment gaps | Incomplete asset or threat analysis, missing risk treatment plans | Documented risk registers, treatment plans, SoA justification |
| Control inconsistencies | Controls applied inconsistently across teams | Implementation evidence, monitoring records |
| Limited awareness | Employees unaware of ISMS procedures | Training logs, awareness program records |
| Monitoring gaps | KPIs and incident tracking missing | Logs, reports, and evaluation summaries |
| Supplier risks | Third-party security obligations not managed | Risk categorisation, contracts, offboarding evidence |
This table summarises the areas most often identified as nonconformities, providing a practical reference for organisations preparing for their first audit.
Practical Steps to Minimise Nonconformities
Preparation is of utmost importance to reduce the likelihood of issues on first-time audits. Nonconformities can be reduced by your organisation by preparation of:
- Internal audits and pre-assessments to close gaps prior to the actual audit.
- Unified documentation that includes version control, approvals, and links to policies, risks, controls, and the SoA.
- Embedding risk management into daily operations so assessments are live, reviewed, and actionable.
- Training and awareness of personnel and maintaining proof of these trainings.
- Evidence of ISMS performance, control issues, and evidence of ISMS corrective actions.
- Managed risks for suppliers and third parties by integrating security into contracts and reviews.
The actions listed above result in a lower number of audit issues, a greater number of audit issues and a greater number of issues a greater number of issues and greater issues of audit issues and a greater number of issues and greater issues of issues and a greater number of audit issues.
Conclusion
First-time audits of ISO/IEC 27001 often identify nonconformities, but they represent opportunities for organisations to further enhance and develop their ISMS. They point to areas where policy, controls, and procedures may require alignment with the standard.
RACERT, as an independent body, aids organisations in ensuring that they conform to the ISO/IEC 27001 standard. By undergoing an extensive and transparent assessment, RACERT offers organisations an objective means of proving conformity to the ISO/IEC 27001 standard, thus helping them secure certification and build trust with their stakeholders.
By resolving common nonconformities, organisations can not only secure conformity to the ISO/IEC 27001 standard but also instil an information security culture and mindset, thus enhancing overall organisational and supply chain resilience.
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