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Lab 01 — Build an ISO/IEC 27001 ISMS

Field Details
Lab Type GRC / ISO/IEC 27001 Implementation
Difficulty Intermediate
Estimated Time 3–4 Hours
Primary Role GRC Analyst / ISO 27001 Analyst
Environment Simulated Enterprise
Primary Framework ISO/IEC 27001:2022
Deliverable Enterprise ISMS Package

You have joined CloudNova Technologies, a fictional SaaS organization that provides a cloud-hosted business platform to enterprise customers.

The company is growing rapidly and customers are increasingly asking:

Are you ISO/IEC 27001 certified?

CloudNova currently has security technologies and individual policies, but it does not have a formally structured Information Security Management System.

Senior management has approved an initiative to prepare the organization for ISO/IEC 27001 certification.

You have been assigned to the GRC team.

Your mission is to build the organization’s initial ISO/IEC 27001 ISMS package.

You will move through the same lifecycle used in a real implementation:

Understand Organization
Define ISMS Scope
Identify Interested Parties
Establish Governance
Create Risk Methodology
Identify & Assess Risks
Develop Risk Treatment Plan
Build Statement of Applicability
Assign Control Ownership
Establish Policies
Collect Evidence
Prepare Internal Audit
Management Review
Certification Readiness

By the end of the lab, you will have created a practical collection of interconnected GRC artifacts rather than a collection of unrelated documents.

By completing this lab, you will be able to:

  • Define organizational context for an ISMS.

  • Identify relevant interested parties.

  • Define an ISO/IEC 27001 ISMS scope.

  • Establish basic ISMS governance.

  • Create an information security risk methodology.

  • Build an enterprise risk register.

  • Evaluate inherent and residual risk.

  • Determine risk-treatment decisions.

  • Develop a Risk Treatment Plan.

  • Build a Statement of Applicability.

  • Map risks to security controls.

  • Assign control ownership.

  • Establish a security policy hierarchy.

  • Build an ISMS evidence register.

  • Prepare an internal audit plan.

  • Prepare management-review information.

  • Evaluate certification readiness.

  • Present ISMS status to senior management.

CloudNova Technologies has approximately:

Employees: 500
Locations:
India
United Kingdom
United States
Customers:
Enterprise SaaS Customers
Primary Platform:
CloudNova SaaS Platform
Cloud Provider:
AWS
Development:
GitHub-based development environment
Identity:
Centralized cloud identity provider
Endpoint Environment:
Corporate laptops
Security Operations:
Internal security team
Third Parties:
Cloud providers
Payment providers
Software vendors
Contractors
Support providers

The company’s core business service is:

Providing a secure and highly available cloud-based SaaS platform to enterprise customers.

CloudNova already has several security capabilities.

These include:

  • MFA.

  • Endpoint protection.

  • Cloud logging.

  • Vulnerability scanning.

  • Backups.

  • Security awareness training.

  • Incident response.

  • Vendor assessments.

  • Access reviews.

However, the organization has several governance problems.

Security controls exist
Ownership unclear
Policies exist
Review dates inconsistent
Risks exist
No central risk register
Controls operate
Evidence scattered
Vendor reviews occur
No consistent methodology
Management receives reports
No formal ISMS management review

Your task is to convert this fragmented security environment into a structured ISMS.

Create the following artifacts:

ISO27001-ISMS/
├── 01-ISMS-Scope.md
├── 02-Context-Register.md
├── 03-Interested-Parties-Register.md
├── 04-ISMS-Governance-RACI.md
├── 05-Risk-Assessment-Methodology.md
├── 06-Information-Security-Risk-Register.md
├── 07-Risk-Treatment-Plan.md
├── 08-Statement-of-Applicability.md
├── 09-Control-Ownership-Matrix.md
├── 10-Policy-Register.md
├── 11-Evidence-Register.md
├── 12-Internal-Audit-Plan.md
├── 13-Management-Review-Pack.md
└── 14-Certification-Readiness-Assessment.md

These documents together form your initial ISMS implementation package.

Assume the following simplified architecture:

Internet
CloudFront
Application Load
Balancer
SaaS Application
┌────────┴────────┐
▼ ▼
Database Object Storage
│ │
└────────┬────────┘
Backup Services
Employees
Identity Provider
├──── SaaS Applications
├──── AWS
├──── GitHub
└──── Corporate Systems
Security Telemetry
Central Logging / SIEM
Security Operations

You will use this environment throughout the lab.

Create:

02-Context-Register.md

Start by identifying internal issues that could affect the ISMS.

Example:

ID Internal Issue ISMS Impact
INT-01 Rapid business growth New assets and users introduced rapidly
INT-02 Distributed workforce Increased identity and endpoint risk
INT-03 Cloud-native infrastructure Strong cloud governance required
INT-04 Multiple engineering teams Secure SDLC consistency required
INT-05 Heavy SaaS usage Third-party dependencies increase

Add at least five internal issues.

Add external factors.

Example:

ID External Issue ISMS Impact
EXT-01 Enterprise customer requirements Security assurance required
EXT-02 Cyber threat landscape Continuous security monitoring required
EXT-03 Privacy obligations Data protection controls required
EXT-04 Supply-chain attacks Vendor risk management required
EXT-05 Cloud dependency Cloud resilience required

Add at least five external issues.

Your Context Register should demonstrate that the ISMS is based on the organization’s actual business environment.

You should be able to explain:

Business Environment
Security Context
ISMS Requirements

9. Step 3 — Build Interested Parties Register

Section titled “9. Step 3 — Build Interested Parties Register”

Create:

03-Interested-Parties-Register.md

Identify stakeholders relevant to information security.

Example:

Party Requirement / Expectation ISMS Relevance
Customers Protection of customer data High
Employees Secure access to systems High
Management Risk visibility High
Regulators Compliance High
Cloud Provider Shared responsibility High
Vendors Security obligations Medium
Auditors Evidence of conformity High

Add at least eight interested parties.

Do not simply ask:

Who interacts with the company?

Ask:

Which parties have requirements or expectations relevant to information security and the ISMS?

The primary service is:

CloudNova SaaS Platform

Identify supporting components:

AWS Infrastructure
Application Services
Databases
Identity Systems
Corporate Endpoints
Development Environment
Security Monitoring
Backup Services

12. Step 5 — Define Organizational Boundaries

Section titled “12. Step 5 — Define Organizational Boundaries”

Determine which teams support the service.

Example:

Engineering
Cloud Operations
Security
GRC
IT
Customer Support
HR
Procurement

Consider:

Corporate Offices
Remote Workforce
Cloud Infrastructure
Third-Party Data Centers

Remember that cloud infrastructure creates dependencies even when the organization does not physically own the data center.

14. Step 7 — Write the ISMS Scope Statement

Section titled “14. Step 7 — Write the ISMS Scope Statement”

Create:

01-ISMS-Scope.md

Example:

The Information Security Management System applies to the design, development, operation, maintenance, and support of the CloudNova SaaS Platform and its supporting cloud infrastructure, identity services, security operations, corporate IT systems, personnel, and third-party services involved in delivering the platform to customers.

Document:

Included Services
Included Locations
Included Teams
Included Technologies
Interfaces
Dependencies
Justified Exclusions

Verify:

  • Critical service included.

  • Supporting infrastructure included.

  • Relevant employees included.

  • Security operations included.

  • Important suppliers considered.

  • Interfaces identified.

  • Dependencies identified.

  • Exclusions justified.

Create:

04-ISMS-Governance-RACI.md

Use these roles:

Executive Management
CISO
ISMS Manager
GRC Team
Risk Owners
Control Owners
Security Engineering
IT
HR
Procurement
Internal Audit

Example:

Activity Management CISO GRC Control Owner Internal Audit
ISMS Scope A R R C I
Risk Assessment I A R C I
Risk Treatment I A R R I
Control Operation I A C R I
Internal Audit I I C C R
Management Review A R C I I

Legend:

R = Responsible
A = Accountable
C = Consulted
I = Informed

Expand this matrix for your ISMS.

Part 5 — Build the Risk Assessment Methodology

Section titled “Part 5 — Build the Risk Assessment Methodology”

Create:

05-Risk-Assessment-Methodology.md

Use:

Risk = Likelihood × Impact

Both values will use a 1–5 scale.

Score Rating Description
1 Rare Highly unlikely
2 Unlikely Could occur
3 Possible May occur
4 Likely Expected
5 Almost Certain Frequently expected
Score Rating Description
1 Insignificant Minimal impact
2 Minor Limited impact
3 Moderate Noticeable business impact
4 Major Significant operational/customer impact
5 Severe Critical business impact

Calculate:

Risk Score = Likelihood × Impact

Use:

Score Rating
1–4 Low
5–9 Medium
10–16 High
17–25 Critical

Define:

Mitigate
Avoid
Transfer
Accept

Risk acceptance should require appropriate authorization.

Part 6 — Build the Information Security Risk Register

Section titled “Part 6 — Build the Information Security Risk Register”

Create:

06-Information-Security-Risk-Register.md

Start with assets.

Examples:

Customer Data
AWS Environment
Production Database
Source Code
Identity Platform
Employee Endpoints
Security Logs
Backup Data
Vendor Services

Examples:

Credential Theft
Malware
Ransomware
Insider Threat
Cloud Misconfiguration
Software Vulnerability
Supply-Chain Attack
Data Leakage
Service Outage

Examples:

Weak Authentication
Excessive Privileges
Missing Patches
Misconfiguration
Poor Monitoring
Weak Vendor Controls
Inadequate Backup Testing

Use:

Because of [vulnerability], [threat] could affect [asset], resulting in [business impact].

Example:

Because privileged cloud accounts are not consistently reviewed, compromised or inappropriate privileged access could result in unauthorized changes to production infrastructure and customer data exposure.

Use:

ID Asset Threat Vulnerability Risk L I Score Rating Owner
R-001 AWS Credential theft Weak privileged governance Unauthorized cloud access 4 5 20 Critical CISO
R-002 Customer DB Data breach Excessive access Customer data exposure 3 5 15 High CTO
R-003 Endpoints Ransomware Unpatched software Endpoint compromise 3 4 12 High IT
R-004 Vendors Supply-chain attack Weak assessment Third-party compromise 3 5 15 High Procurement
R-005 Backups Service outage Untested recovery Extended downtime 3 5 15 High IT

Create at least 10 risks.

Part 7 — Develop the Risk Treatment Plan

Section titled “Part 7 — Develop the Risk Treatment Plan”

Create:

07-Risk-Treatment-Plan.md

For each High or Critical risk, determine the treatment.

Example:

Risk Treatment Planned Action
R-001 Mitigate MFA + privileged access review
R-002 Mitigate RBAC + access review
R-003 Mitigate Patch management + EDR
R-004 Mitigate Vendor security assessment
R-005 Mitigate Recovery testing

Add:

Treatment Owner
Target Date
Status

Example:

Risk Owner Target Status
R-001 IAM Lead 30 Sep In Progress

After controls:

Inherent Risk
Security Controls
Residual Risk

Example:

Inherent:
Likelihood = 4
Impact = 5
Score = 20 Critical
After Treatment:
Likelihood = 2
Impact = 5
Residual Score = 10 High

Residual risk must be evaluated and, where appropriate, formally accepted.

Part 8 — Build the Statement of Applicability

Section titled “Part 8 — Build the Statement of Applicability”

Create:

08-Statement-of-Applicability.md

Your SoA should contain:

Control Applicable? Justification Implementation Owner Evidence
Control Area Applicable Justification Status
Access Control Yes Protect production systems Implemented
Security Awareness Yes Employees handle information Implemented
Supplier Security Yes Critical vendors used Partial
Logging Yes Security monitoring required Implemented
Secure Development Yes SaaS software developed internally Implemented

Use the applicable ISO/IEC 27001:2022 Annex A control set when building the complete SoA.

For each control:

Risk / Requirement
Is Control Relevant?
Yes / No
Document Justification
Document Implementation Status

Do not mark a control:

Not Applicable

simply because implementation is difficult.

34. Step 20 — Create Risk-to-Control Traceability

Section titled “34. Step 20 — Create Risk-to-Control Traceability”

Add control mappings to the Risk Treatment Plan.

Example:

R-001
Unauthorized Cloud Access
Identity Controls
MFA
Privileged Access Management
Access Review

Your goal is to establish:

Risk
Treatment
Control
Owner
Evidence

When an auditor asks:

Why did you implement this control?

you should be able to trace it back to:

Risk
Requirement
Contractual Obligation
Legal Obligation
Business Need

Part 10 — Build the Control Ownership Matrix

Section titled “Part 10 — Build the Control Ownership Matrix”

Create:

09-Control-Ownership-Matrix.md

Example:

Control Area Owner Operator Evidence Owner
IAM IAM Manager IAM Team IAM Manager
Vulnerability Management Security Manager Security Engineering Security Manager
Incident Response SOC Manager SOC SOC Manager
Supplier Security GRC Manager GRC GRC Manager
Backup IT Manager IT Operations IT Manager

Every important control should answer:

Who Owns It?
Who Operates It?
Who Reviews It?
Who Provides Evidence?

Avoid:

Owner:
Security Team

when a specific accountable role can be identified.

Part 11 — Establish the Policy Framework

Section titled “Part 11 — Establish the Policy Framework”

Create:

10-Policy-Register.md

Include:

Policy Owner Approver Review Frequency Status
Information Security Policy CISO CEO Annual Approved
Access Control Policy IAM Manager CISO Annual Approved
Incident Response Policy SOC Manager CISO Annual Approved
Vendor Security Policy GRC CISO Annual Draft
Backup Policy IT Manager CTO Annual Approved
Information Security Policy
Topic-Specific Policies
Standards
Procedures
Technical Configurations

Example:

Access Control Policy
IAM Standard
User Provisioning Procedure
Identity Platform Configuration

Create:

11-Evidence-Register.md

Example:

Evidence ID Control Evidence Owner Frequency Location
E-001 Access Review Quarterly Review IAM Quarterly GRC Repository
E-002 Awareness Training Report HR Annual LMS
E-003 Vulnerability Scan Report Security Monthly Scanner
E-004 Backup Recovery Test IT Quarterly IT Repository
E-005 Vendor Risk Vendor Assessment GRC Annual GRC Repository

Build:

Control
Expected Evidence
Evidence Owner
Collection Frequency
Repository

This prepares the organization for internal and external audits.

Part 13 — Perform a Control Evidence Review

Section titled “Part 13 — Perform a Control Evidence Review”

Select:

MFA
Privileged Access Review
Vulnerability Management
Vendor Assessment
Backup Recovery

For each control, determine:

Design Appropriate?
Implemented?
Evidence Available?
Operating Consistently?
Exceptions?

Use:

Control Design Evidence Effective? Exception
MFA Effective Configuration Yes None
Access Review Effective Review Reports Partial Q2 missing
Vulnerability Management Effective Scan Reports Yes None
Vendor Assessment Effective Assessments Partial 2 vendors overdue
Backup Recovery Effective Recovery Tests Yes None

Based on the sample above:

Finding 01:
Quarterly access review not completed in Q2.
Finding 02:
Two critical vendors have overdue reassessments.

Document these for internal audit.

Create:

12-Internal-Audit-Plan.md

Include:

Audit Objective
Audit Scope
Audit Criteria
Auditor
Audit Period
Processes
Controls
Interviews
Evidence
Schedule

Example:

Determine whether the CloudNova ISMS conforms to organizational and ISO/IEC 27001 requirements and is effectively implemented and maintained.

Include:

ISMS Governance
Risk Management
Access Control
Vulnerability Management
Supplier Security
Incident Management
Business Continuity

Use:

ISO/IEC 27001
Statement of Applicability
Internal Policies
Standards
Procedures
Applicable Requirements

Example:

Day Activity
Day 1 Governance & ISMS
Day 2 Risk & Controls
Day 3 IAM & Security Operations
Day 4 Vendor & Resilience
Day 5 Findings & Closing Meeting

Part 15 — Simulate Internal Audit Findings

Section titled “Part 15 — Simulate Internal Audit Findings”

Requirement:

Quarterly privileged access review

Condition:

Q2 review not completed.

Risk:

Inappropriate privileged access may remain active.

Requirement:

Critical vendors reassessed annually.

Condition:

Two vendors overdue.

Risk:

Changes in third-party security posture may remain unidentified.

For Finding 01:

Problem:
Access review missed
Why?
No reminder
Why?
Manual calendar process
Why?
No centralized GRC workflow

Root cause:

Reliance on an informal manual control scheduling process.

Correction:

Complete Q2 review.

Corrective action:

Implement centralized quarterly
control scheduling and escalation.

Owner:

IAM Manager

54. Step 28 — Build Management Review Pack

Section titled “54. Step 28 — Build Management Review Pack”

Create:

13-Management-Review-Pack.md

Include:

ISMS Status
Risk Status
Security Objectives
Audit Results
Control Performance
Incidents
Supplier Risks
Nonconformities
Corrective Actions
Changes Affecting ISMS
Improvement Opportunities
Decisions Required

Create:

Metric Status
Critical Risks 1
High Risks 4
Controls Implemented 85%
Internal Audit Findings 2
Overdue Vendor Reviews 2
Open Corrective Actions 2

Request decisions such as:

Approve Risk Treatment Plan
Accept Residual Risks
Approve Additional IAM Resources
Approve Vendor Remediation
Approve Certification Timeline

Management review should result in decisions and actions, not merely a presentation.

Part 17 — Certification Readiness Assessment

Section titled “Part 17 — Certification Readiness Assessment”

57. Step 29 — Build Readiness Assessment

Section titled “57. Step 29 — Build Readiness Assessment”

Create:

14-Certification-Readiness-Assessment.md

Use:

Area Status Evidence Gap Action
ISMS Scope Green Scope Document None None
Risk Assessment Green Risk Register None None
RTP Green Treatment Plan None None
SoA Green SoA None None
Internal Audit Amber Audit Report 2 findings Remediate
Management Review Green Minutes None None
Vendor Controls Amber Assessments 2 overdue Complete reviews
Green
=
Ready
Amber
=
Improvement Required
Red
=
Not Ready

Based on the scenario, your recommendation should be:

Certification Readiness
CONDITIONALLY READY

Reason:

  • ISMS structure established.

  • Risk process established.

  • SoA established.

  • Controls largely implemented.

  • Internal audit completed.

  • Management review completed.

  • Limited corrective actions remain.

Recommendation:

Complete and verify the open corrective actions before proceeding to the certification audit.

Part 18 — Build the ISMS Traceability Model

Section titled “Part 18 — Build the ISMS Traceability Model”

Use:

R-001
Unauthorized Cloud Access

Trace it through the ISMS.

R-001
Unauthorized Cloud Access
Risk Treatment
Mitigate
Controls
MFA
Privileged Access Management
Access Review
Control Owner
IAM Manager
Evidence
MFA Configuration
Quarterly Access Review
Internal Audit
Control Tested
Finding
Q2 Review Missing
Corrective Action
Centralized Control Scheduling
Management Review
Remediation Monitored

This is one of the most important concepts in GRC.

A mature ISMS should allow you to move:

Business Requirement
Risk
Control
Owner
Evidence
Testing
Finding
Remediation
Management Oversight

This is how separate GRC documents become an actual management system.

Your final folder should contain:

ISO27001-ISMS/
├── 01-ISMS-Scope.md
├── 02-Context-Register.md
├── 03-Interested-Parties-Register.md
├── 04-ISMS-Governance-RACI.md
├── 05-Risk-Assessment-Methodology.md
├── 06-Information-Security-Risk-Register.md
├── 07-Risk-Treatment-Plan.md
├── 08-Statement-of-Applicability.md
├── 09-Control-Ownership-Matrix.md
├── 10-Policy-Register.md
├── 11-Evidence-Register.md
├── 12-Internal-Audit-Plan.md
├── 13-Management-Review-Pack.md
└── 14-Certification-Readiness-Assessment.md

Before completing the lab, verify:

  • ISMS boundaries defined.

  • Critical services identified.

  • Interfaces documented.

  • Dependencies documented.

  • Internal issues identified.

  • External issues identified.

  • Interested parties documented.

  • Security requirements identified.

  • ISMS owner identified.

  • Roles assigned.

  • RACI created.

  • Leadership accountability established.

  • Risk methodology documented.

  • Likelihood defined.

  • Impact defined.

  • Acceptance criteria defined.

  • At least 10 risks documented.

  • Risk owners assigned.

  • Residual risk evaluated.

  • Treatment decisions documented.

  • Actions assigned.

  • Target dates assigned.

  • Controls mapped.

  • Applicability evaluated.

  • Justifications documented.

  • Implementation status recorded.

  • Ownership established.

  • Control owners assigned.

  • Control operators identified.

  • Evidence owners identified.

  • Evidence expectations defined.

  • Policy register created.

  • Owners identified.

  • Approvers identified.

  • Review frequencies defined.

  • Internal audit planned.

  • Control testing performed.

  • Findings documented.

  • Root causes evaluated.

  • Corrective actions assigned.

  • Management review prepared.

  • Risk status presented.

  • Findings presented.

  • Decisions identified.

  • Readiness assessment completed.

  • Gaps identified.

  • Remediation actions assigned.

  • Certification recommendation documented.

Prepare a one-page executive summary.

Use the following structure:

Overall Status:
Conditionally Ready for Certification
  • ISMS scope established.

  • Risk methodology implemented.

  • Risk register established.

  • Risk Treatment Plan created.

  • SoA established.

  • Control ownership assigned.

  • Evidence model established.

  • Internal audit completed.

  • Management review completed.

Quarterly Access Review Finding
Two Overdue Vendor Assessments

Complete corrective actions, verify remediation effectiveness, update certification-readiness status, and proceed to Stage 1 certification assessment when the remaining readiness issues are satisfactorily resolved.

By completing this lab, you have practiced:

ISMS Scoping
Organizational Context Analysis
Stakeholder Analysis
GRC Governance
Risk Assessment
Risk Register Development
Risk Treatment
Residual Risk
Statement of Applicability
Control Mapping
Control Ownership
Policy Governance
Evidence Management
Control Testing
Internal Audit
Corrective Action
Management Review
Certification Readiness

These are practical responsibilities performed by:

  • GRC Analysts.

  • GRC Consultants.

  • Information Security Analysts.

  • ISO 27001 Consultants.

  • ISMS Managers.

  • Security Compliance Analysts.

  • Security Assurance Analysts.

For additional practice, package your work as:

CloudNova
ISO/IEC 27001 ISMS Implementation Project

Include:

Executive Summary
ISMS Scope
Context Register
Interested Parties Register
Risk Methodology
Risk Register
Risk Treatment Plan
Statement of Applicability
Control Ownership Matrix
Policy Register
Evidence Register
Internal Audit Plan
Management Review Pack
Certification Readiness Assessment

This demonstrates that you understand how ISO/IEC 27001 artifacts connect across an enterprise ISMS.

Do not include confidential information from a real employer or customer in a public portfolio.

You have successfully completed the mission when you can demonstrate:

Business Context
ISMS Scope
Risk Assessment
Risk Treatment
Controls
Evidence
Audit
Management Review
Certification Readiness

The key lesson is:

An ISMS is not a collection of documents. It is a management system connecting business requirements, risks, controls, evidence, assurance, leadership, and continuous improvement.

➡️ Next: Lab 02 — Build an ISO/IEC 27001 Statement of Applicability & Control Mapping

In the next lab, you will go deeper into one of the most important ISO/IEC 27001 implementation artifacts: the Statement of Applicability (SoA).

You will take organizational risks and requirements and build traceability across:

Business Requirement
Information Security Risk
Risk Treatment
Annex A Control
Applicability Decision
Implementation Status
Control Owner
Evidence
Testing

You will create an enterprise-style Statement of Applicability, Risk-to-Control Mapping Matrix, Control Ownership Matrix, Evidence Mapping Register, and SoA Review Checklist, preparing you for real-world ISO/IEC 27001 implementation and audit work.