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📘 ISO 27001 Security Policy Suite — Enterprise Compliance Project

This project delivers a complete ISO 27001–aligned Security Policy Suite designed for enterprise environments requiring strong governance, risk management, and information security controls.

These policies form the foundation of an Information Security Management System (ISMS) and demonstrate the ability to produce audit-ready, compliant, and actionable documentation as a cybersecurity consultant.


📘 1. Project Summary

The objective of this project is to create a comprehensive set of ISO 27001 security policies, covering:

  • Governance
  • Access Management
  • Network Security
  • Logging & Monitoring
  • Incident Response
  • Backup & Recovery
  • Asset Management
  • Cryptographic Controls
  • Supplier Security
  • Compliance Management

These policies reflect real-world standards required by banks, healthcare, fintech, government systems, SaaS companies, and enterprises.


🎯 2. Objectives

  • Establish a full ISO 27001 policy framework
  • Ensure alignment with Annex A security controls
  • Strengthen organizational governance
  • Define responsibilities for employees & administrators
  • Reduce business, legal, and operational risks
  • Enable future ISO 27001 certification

🔧 3. ISO 27001 Domains Covered

This policy suite covers major domains from:

✔ ISO 27001:2022

✔ NIST CSF

✔ CIS Controls

✔ Zero Trust Governance

✔ GDPR (where applicable)


📦 4. Policy Suite Overview

The project includes 10+ enterprise-grade security policies, each containing:

  • Purpose
  • Scope
  • Policy Statement
  • Roles & Responsibilities
  • Procedures
  • Compliance Requirements
  • Exceptions
  • Version History

📄 5. Included Policies (Detailed List)

Below is the complete set of ISO 27001–aligned policies included in this project:


1️⃣ Access Control Policy

Defines how users authenticate, what they are authorized to do, and how access is granted/removed.

Key Elements:

  • MFA enforcement
  • RBAC (Role-Based Access Control)
  • Password standards (aligned to NIST SP 800-63B)
  • Privileged access management
  • User onboarding/offboarding

2️⃣ Asset Management Policy

Ensures proper tracking, classification, and protection of organizational assets.

Key Elements:

  • Asset inventory
  • Data classification
  • Asset ownership
  • Protection requirements per classification level

3️⃣ Information Security Policy

High-level policy defining organizational commitment to information security.

Key Elements:

  • Executive responsibility
  • ISMS governance
  • Risk-based security approach
  • Internal audit requirements

4️⃣ Incident Response Policy

Defines the process for identifying, reporting, triaging, and responding to security incidents.

Key Elements:

  • Severity definitions
  • Incident escalation matrix
  • Roles (Incident Manager, Responders, Forensics)
  • Communication plan
  • Evidence retention

5️⃣ Network Security Policy

Outlines controls for secure network configuration and traffic segmentation.

Key Elements:

  • Firewall rules
  • VLAN segmentation
  • Zero Trust network access
  • Wireless network security
  • Remote access policy

6️⃣ Logging & Monitoring Policy

Defines how security events are captured and monitored.

Key Elements:

  • Centralized logging (SIEM)
  • Log retention periods
  • Event correlation rules
  • Monitoring responsibilities
  • Alert thresholds

7️⃣ Backup & Recovery Policy

Defines how data is backed up, stored, and restored.

Key Elements:

  • Backup frequency
  • Off-site backup
  • Encryption of stored backups
  • Disaster recovery procedures

8️⃣ Cryptographic Controls Policy

Defines requirements for secure encryption and key management.

Key Elements:

  • Approved encryption standards (AES-256, TLS 1.2/1.3)
  • Certificate management
  • Key generation, storage, rotation
  • Hashing and secure communication rules

9️⃣ Supplier Security Policy

Covers third-party security, SLA, and risk evaluation.

Key Elements:

  • Vendor risk assessment
  • Contractual security clauses
  • Data-processing agreements
  • Continuous monitoring

🔟 Acceptable Use Policy (AUP)

Rules for proper use of company systems and resources.

Key Elements:

  • Device usage
  • Email & communication standards
  • Restricted activities
  • Monitoring disclaimer

1️⃣1️⃣ Business Continuity & Disaster Recovery (BCP/DR) Policy

Defines continuity requirements for critical operations.

Key Elements:

  • RTO/RPO definitions
  • Crisis response roles
  • Backup restoration testing
  • Alternative site operations

🧱 6. Policy Suite Architecture Diagram (ASCII)

     ┌────────────────────────────┐
     │       ISO 27001 ISMS        │
     └───────────────┬────────────┘
                     │
  ┌──────────────────┴──────────────────┐
  │                                     │

Governance & Risk Technical Controls │ │ ┌─────┴───────┐ ┌────────┴────────┐ │ Information │ │ Access Control │ │ Security │ │ Network Security │ │ Policy │ │ Encryption │ └─────┬────────┘ └────────┬────────┘ │ │ ┌─────┴──────┐ ┌─────┴──────┐ │ Incident │ │ Logging & │ │ Response │ │ Monitoring │ └────────────┘ └────────────┘


🧠 7. Control Mapping to ISO 27001 Annex A

ISO Annex A Control Policy Implemented
A.5 Policies Information Security Policy
A.6 Organization of Information Security Supplier Policy
A.8 Asset Management Asset Management Policy
A.9 Access Control Access Control Policy
A.10 Cryptography Cryptographic Control Policy
A.12 Operations Security Logging & Monitoring
A.13 Communications Security Network Security Policy
A.16 Incident Management Incident Response Policy
A.17 Business Continuity BCP/DR Policy

🔍 8. Key Features of the Policy Suite

✔ Audit-Ready

Meets evidence requirements for ISO certification.

✔ Action-Oriented

Policies include real operational expectations.

✔ Scalable

Designed for growth and multi-region expansion.

✔ Zero Trust Aligned

Identity-first and least-privilege principles.

✔ Practical & Realistic

Built from real enterprise policies used in consulting engagements.


🛠️ 9. Tools Used

  • Compliance Frameworks (ISO 27001, NIST CSF)
  • Policy Management Templates
  • Governance & Risk Management concepts
  • SIEM/SOC Logging Standards

(No programming languages used.)


📦 10. Deliverables


📁 Repository Structure

ISO27001-Policy-Suite
│
├── docs
│
├── mappings
│   └── annex-a-control-mapping.md
│
├── policies
│   ├── access-control-policy.md
│   └── incident-response-policy.md
│
├── templates
│
└── README.md

📌 Key Governance Deliverables

Deliverable Purpose
Access Control Policy Identity and access governance
Incident Response Policy Incident governance and escalation
Annex A Mapping ISO control traceability
Governance Documentation Audit and compliance support

📈 11. Key Outcomes

  • Strengthened organizational governance
  • Reduced operational risk
  • Increased audit readiness
  • Improved information security hygiene
  • Better vendor and asset governance
  • Clear incident response workflows

🧾 12. Conclusion

This ISO 27001 Policy Suite forms the backbone of a strong Information Security Management System (ISMS).
It demonstrates:

  • Your understanding of compliance frameworks
  • Your ability to write enterprise-grade policies
  • Your capability as a cybersecurity consultant
  • Your knowledge of governance and risk management

These policies are suitable for organizations pursuing ISO 27001 certification.


📬 Contact

GitHub: https://github.com/rajbharti-cyber
LinkedIn: https://www.linkedin.com/in/rajbharti-cybersecurity/

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Enterprise ISO 27001 governance and policy framework aligned with risk management and audit readiness practices.

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