ISO 27001 Security Framework and Building an Enterprise Information Security System

Why Information Security? Enterprises face threats from external hackers, cyber‑crime, competitors, and insiders, leading to vulnerabilities, attacks, ransomware, and data leaks that can damage operations, reputation, and revenue.

What Security Do Companies Need? The primary needs are data security, proactive threat detection, and ensuring business continuity against attacks such as DDoS and credential compromise.

How to Build Security?

1. Security Objectives – Align security planning across four dimensions: information security management policies, infrastructure security, business security, and security operations. Goals evolve with the company’s growth stage.

2. Short‑Term Goals – Establish basic security management policies, deploy IDS/IPS, web‑application firewalls, user‑activity monitoring, and an information security management platform. Build organizational structures, personnel training, and policy frameworks to quickly improve the security posture.

3. Medium‑Long‑Term Goals – Develop a complete security technology stack, management system, and operational processes. Implement centralized security monitoring, deep‑defense architecture, and continuous risk‑control and incident‑response capabilities.

4. Information Security Management System – Emphasize that technology accounts for 30% while management accounts for 70% of security success. Establish formal policies, awareness training, and governance structures.

5. Production Network Architecture – (Images illustrating network segmentation and security zones are included.)

6. Office Network Architecture – (Images illustrating office network layout and controls are included.)

7. Third‑Party Suppliers and Compliance – Ensure suppliers meet security standards and integrate compliance checks.

8. Security Budgeting – Recommend fixing security spend at 5%–10% of total IT budget to support ongoing needs.

Conclusion – A stable, well‑funded security program, guided by ISO 27001 and aligned with regulatory requirements such as China’s Level‑2 Protection (等保2.0), enables enterprises to protect data, maintain service availability, and sustain business growth.