Antivirus

11/09/2025

Author: Stuart Barker | ISO 27001 Expert and Thought Leader

A type of software used to prevent, detect, and remove malicious software. In the context of ISO 27001, antivirus is a key technical control used to protect against malware. It’s an essential part of an organisation’s overall strategy to maintain the confidentiality, integrity, and availability of information.

ISO 27001 Context

The ISO 27001 standard doesn’t specifically use the term antivirus, but it’s directly addressed under the control for Protection Against Malware (ISO 27001 Annex A 8.7 Protection Against Malware). This control requires a multi-layered approach to security that includes:

  • Anti-malware software: This is where anti-virus fits in. It must be properly installed and kept up-to-date on all relevant devices.
  • User awareness: Training employees to recognise and avoid malware threats.
  • Controlled access: Restricting access to unauthorised websites and software to prevent malware from entering the network.
  • Regular monitoring: Continuously scanning systems and reviewing logs to detect any signs of malware.

Best Practice

Relying solely on anti-virus software is not considered sufficient for compliance. ISO 27001 emphasises a defence in depth approach, where antivirus is just one of several integrated controls that work together to protect the organisation from evolving threats.

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.