Base Measure

11/09/2025

Author: Stuart Barker | ISO 27001 Expert and Thought Leader

Base Measure is a fundamental security control or action implemented to protect an organisation’s information assets. Think of it as a foundational or essential building block of a security system. These are not just best practices, but rather the initial steps taken to create a secure environment, often addressing the most critical risks first. They form the bedrock of a strong Information Security Management System (ISMS) and are crucial for ensuring the confidentiality, integrity, and availability of information.

Examples

  • Data Classification: Categorising data based on its sensitivity (e.g., public, internal, confidential) to ensure appropriate controls are applied.
  • Incident Response Plan: A documented procedure for handling security breaches to minimise their impact and ensure a swift recovery.
  • Regular Security Awareness Training: Ensuring all employees understand security risks and their responsibilities in protecting information.
  • Access Control Policies: Defining who can access which assets and under what conditions.

Context

Base measures are a key element in aligning with the requirements of ISO 27001. By identifying and implementing these measures, an organisation can effectively mitigate risks, improve its overall security posture, and prioritise its security efforts.

About the author

Stuart Barker is an information security practitioner of over 30 years. He holds an MSc in Software and Systems Security and an undergraduate degree in Software Engineering. He is an ISO 27001 expert and thought leader holding both ISO 27001 Lead Implementer and ISO 27001 Lead Auditor qualifications. In 2010 he started his first cyber security consulting business that he sold in 2018. He worked for over a decade for GE, leading a data governance team across Europe and since then has gone on to deliver hundreds of client engagements and audits.

He regularly mentors and trains professionals on information security and runs a successful ISO 27001 YouTube channel where he shows people how they can implement ISO 27001 themselves. He is passionate that knowledge should not be hoarded and brought to market the first of its kind online ISO 27001 store for all the tools and templates people need when they want to do it themselves.

In his personal life he is an active and a hobbyist kickboxer.

His specialisms are ISO 27001 and SOC 2 and his niche is start up and early stage business.