ISO 27400 Lead Manager study guide
ISO 27400 Lead Manager · Work through your exam, one topic at a time.
The ISO/IEC 27400 Lead Manager credential is offered through PECB's training and certification programme, where ISO/IEC 27400 sits in the Information Security group of the Cybersecurity catalogue. ISO/IEC 27400 is the international standard giving guidance on information security controls for Internet of Things (IoT) systems, so a "Lead Manager" role here means the person who directs an organisation's IoT security programme rather than a device-level engineer. The ISO 27400 Lead Manager study guide has 5 sections and about 1,621 words.
01Fundamental Concepts and Principles of IoT Security
The exam tests whether you can explain why IoT systems break assumptions that ordinary IT security makes, and which principles you must apply in response. Questions typically ask you to name the principle behind a design decision, or the risk created when one is skipped.
347 words, about 2 min02ISO/IEC 27400 IoT Security Controls and Risk Management
The exam tests how you convert IoT risk into selected, justified and owned controls using ISO/IEC 27400 as the reference framework, and how clearly you separate guidance from certification requirements. ISO/IEC 27400:2022, Cybersecurity - IoT security and privacy - Guidelines , describes risks and gives principles and controls for IoT across the lifecycle.
330 words, about 2 min03Planning an IoT Security Program Based on ISO/IEC 27400
The exam tests whether you can design a program - scope, governance, sequencing, funding and measures - rather than recite a control list. Define context and scope: which devices, sites, services and data, and which business and safety outcomes matter.
312 words, about 2 min04Implementing and Operating IoT Security Controls
The exam tests whether you can turn selected controls into configured, operated and evidenced practice, and whether you understand device-level and architectural constraints. Identity and access: unique credentials or certificates per device, no shared or default passwords, least-privilege service accounts, rotation and revocation.
297 words, about 1 min05Monitoring, Reviewing and Continually Improving IoT Security
The exam tests whether you can show the program works, feed findings back into risk decisions, and improve without waiting for an incident. Collect device and network logs, baseline normal behaviour, and alert on anomalies such as unexpected outbound connections, repeated authentication failures and configuration drift.
335 words, about 2 min