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Business Continuity

11/09/2025

Author: Stuart Barker | ISO 27001 Expert and Thought Leader

Business Continuity refers to an organisation’s ability to maintain operations and continue delivering its essential products or services at an acceptable predefined level during and after a major disruption. It is a proactive planning process that aims to minimise the impact of a disaster or incident, such as a natural disaster, cyberattack, or supply chain failure.

Key Components & Examples

  • Business Impact Analysis (BIA): The process of identifying an organisation’s most critical activities and the resources (e.g., information, systems, people) needed to support them. A BIA helps determine the maximum tolerable downtime (MTD) for each activity.
  • Business Continuity Plan (BCP): A documented strategy and set of procedures that details how an organisation will respond to a disruption. It includes recovery objectives and specific steps to resume critical operations within the defined timeframes.
  • Disaster Recovery (DR): A specific part of the BCP that focuses on the recovery of the technology infrastructure, such as IT systems, networks, and data, after a disaster.

ISO 27001 Context

While a comprehensive topic in its own right (with a dedicated standard, ISO 22301), ISO 27001 requires organisations to integrate information security into their business continuity plans. This is primarily addressed in ISO 27001 Annex A 5.29 Information Security During Disruption, which focuses on maintaining information security during a disruption to protect the confidentiality, integrity, and availability of information assets.

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.