ISO/IEC 27033: Lead Network Security

The ISO/IEC 27033: Lead Network Security course is an advanced professional program designed to develop the competence required to design, govern, manage, and continually improve network security architectures in alignment with ISO/IEC 27033, the international standard providing guidance on network security controls, design principles, and secure network architecture.

ISO/IEC 27033 is published by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It complements ISO/IEC 27001 and ISO/IEC 27002 by focusing specifically on network-layer security, including secure network design, segmentation, access control, communication protection, and resilience.

This course focuses on leadership and governance rather than device configuration, enabling participants to oversee complex enterprise, cloud, and hybrid network environments. It prepares professionals to operate as senior network security leaders, responsible for aligning network security with business objectives, risk management, and compliance requirements.

Course Objectives

By the end of this course, participants will be able to:

  • Lead and govern network security programs at an enterprise level

  • Design and evaluate secure network architectures using ISO/IEC 27033 principles

  • Align network security controls with information security risk management

  • Oversee network segmentation, access control, and communication security

  • Integrate network security into ISMS, cloud, and hybrid environments

  • Support audits, assessments, and compliance related to network security

  • Drive continual improvement of network security capabilities

Course Curriculum

1

    • Responsibilities and authority
    • Relationship between ISO/IEC 27033, ISO/IEC 27001, and ISO/IEC 27002
    • Network security governance and accountability
    • Leadership vs operational roles

2

  • Network security objectives
  • Defense-in-depth and zero trust concepts
  • Secure network design principles
  • Trust boundaries and threat modeling

3

  • Network-specific threat landscape
  • Risk assessment for network architectures
  • Managing residual and emerging network risks
  • Integration with enterprise risk management

4

  • Network zoning and segmentation
  • Perimeter, internal, and core network security
  • Secure interconnections and gateways
  • Managing legacy and modern networks

5

  • Network access control concepts
  • Authentication and authorization at the network level
  • Integration with identity and access management (IAM)
  • Managing privileged and third-party access

6

  • Protection of data in transit
  • Secure protocols and communication channels
  • Network services security (DNS, DHCP, routing)
  • Managing encrypted traffic

7

  • Cloud networking models and risks
  • Hybrid and multi-cloud connectivity
  • Virtual networks and software-defined networking (SDN)
  • Shared responsibility considerations

8

  • Network monitoring and logging
  • Detecting network-based attacks
  • Supporting incident response and forensics
  • Integration with SOC operations

9

  • Secure connections with partners and suppliers
  • Network security requirements in contracts
  • Managing external dependencies
  • Ongoing assurance and review

10

  • Mapping ISO/IEC 27033 guidance to controls
  • Alignment with ISO/IEC 27002 controls
  • Supporting the Statement of Applicability (SoA)
  • Control documentation and justification

11

  • Network security KPIs and KRIs
  • Measuring effectiveness of network controls
  • Network security maturity models
  • Reporting to management

12

  • Identifying improvement opportunities
  • Managing change and network evolution
  • Adapting to emerging technologies and threats
  • Sustaining secure network operations

13

  • Network security architecture case studies
  • Risk-based design evaluation exercises
  • Stakeholder communication simulations

14

  • Review of ISO/IEC 27033 Lead Network Security syllabus
  • Scenario-based questions and exam techniques
  • Certification exam guidance

15

  • Network security architects and managers
  • Senior network and infrastructure professionals
  • Information security and ISMS managers
  • GRC and risk professionals
  • Consultants and advisors in network security
  • Professionals preparing for ISO/IEC 27033 Lead Network Security certification

16

  • Strong understanding of networking concepts and architectures
  • ISO/IEC 27001 Foundation knowledge
  • Experience in network security, infrastructure, or information security is strongly recommended

17

  • Responsibilities and authority
  • Relationship between ISO/IEC 27033, ISO/IEC 27001, and ISO/IEC 27002
  • Network security governance and accountability
  • Leadership vs operational roles

18

  • Network security objectives
  • Defense-in-depth and zero trust concepts
  • Secure network design principles
  • Trust boundaries and threat modeling

19

  • Network-specific threat landscape
  • Risk assessment for network architectures
  • Managing residual and emerging network risks
  • Integration with enterprise risk management

20

  • Network zoning and segmentation
  • Perimeter, internal, and core network security
  • Secure interconnections and gateways
  • Managing legacy and modern networks

21

  • Network access control concepts
  • Authentication and authorization at the network level
  • Integration with identity and access management (IAM)
  • Managing privileged and third-party access

22

  • Protection of data in transit
  • Secure protocols and communication channels
  • Network services security (DNS, DHCP, routing)
  • Managing encrypted traffic

23

  • Cloud networking models and risks
  • Hybrid and multi-cloud connectivity
  • Virtual networks and software-defined networking (SDN)
  • Shared responsibility considerations

24

  • Network monitoring and logging
  • Detecting network-based attacks
  • Supporting incident response and forensics
  • Integration with SOC operations

25

  • Secure connections with partners and suppliers
  • Network security requirements in contracts
  • Managing external dependencies
  • Ongoing assurance and review

26

  • Mapping ISO/IEC 27033 guidance to controls
  • Alignment with ISO/IEC 27002 controls
  • Supporting the Statement of Applicability (SoA)
  • Control documentation and justification

27

  • Network security KPIs and KRIs
  • Measuring effectiveness of network controls
  • Network security maturity models
  • Reporting to management

28

  • Identifying improvement opportunities
  • Managing change and network evolution
  • Adapting to emerging technologies and threats
  • Sustaining secure network operations

29

  • Network security architecture case studies
  • Risk-based design evaluation exercises
  • Stakeholder communication simulations

30

  • Review of ISO/IEC 27033 Lead Network Security syllabus
  • Scenario-based questions and exam techniques
  • Certification exam guidance

31

  • Network security architects and managers
  • Senior network and infrastructure professionals
  • Information security and ISMS managers
  • GRC and risk professionals
  • Consultants and advisors in network security
  • Professionals preparing for ISO/IEC 27033 Lead Network Security certification

32

  • Strong understanding of networking concepts and architectures
  • ISO/IEC 27001 Foundation knowledge
  • Experience in network security, infrastructure, or information security is strongly recommended

This course includes

  • 32+ Activity Modules
  • 40 hours + lessons
  • Lifetime access
  • Certificate of completion
  • Available on desktop and mobile

Some of Our Partners