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    Information Security Risk Management for ISO 27001/ISO 27002, third edition
    Information Security Risk Management for ISO 27001/ISO 27002, third edition
    Information Security Risk Management for ISO 27001/ISO 27002, third edition
    Ebook215 pages2 hours

    Information Security Risk Management for ISO 27001/ISO 27002, third edition

    By Alan Calder and Steve Watkins

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    About this ebook

    Protect your information assets with effective risk management

    In today’s information economy, the development, exploitation and protection of information and associated assets are key to the long-term competitiveness and survival of corporations and entire economies. The protection of information and associated assets – information security – is therefore overtaking physical asset protection as a fundamental corporate governance responsibility. 

    Information security management system requirements

    ISO 27000, which provides an overview for the family of international standards for information security, states that “An organisation needs to undertake the following steps in establishing, monitoring, maintaining and improving its ISMS […] assess information security risks and treat information security risks”. The requirements for an ISMS are specified in ISO 27001. Under this standard, a risk assessment must be carried out to inform the selection of security controls, making risk assessment the core competence of information security management and a critical corporate discipline.

    Plan and carry out a risk assessment to protect your information

    Information Security Risk Management for ISO 27001 / ISO 27002:

    • Provides information security and risk management teams with detailed, practical guidance on how to develop and implement a risk assessment in line with the requirements of ISO 27001.
    • Draws on national and international best practice around risk assessment, including BS 7799-3:2017 (BS 7799-3).
    • Covers key topics such as risk assessment methodologies, risk management objectives, information security policy and scoping, threats and vulnerabilities, risk treatment and selection of controls.
    • Includes advice on choosing risk assessment software.

    Ideal for risk managers, information security managers, lead implementers, compliance managers and consultants, as well as providing useful background material for auditors, this book will enable readers to develop an ISO 27001-compliant risk assessment framework for their organisation and deliver real, bottom-line business benefits.

    Buy your copy today!

    About the authors

    Alan Calder is the Group CEO of GRC International Group plc, the AIM-listed company that owns IT Governance Ltd. Alan is an acknowledged international cyber security guru and a leading author on information security and IT governance issues. He has been involved in the development of a wide range of information security management training courses that have been accredited by IBITGQ (International Board for IT Governance Qualifications). Alan has consulted for clients in the UK and abroad, and is a regular media commentator and speaker. 

    Steve Watkins is an executive director at GRC International Group plc. He is a contracted technical assessor for UKAS – advising on its assessments of certification bodies offering ISMS/ISO 27001 and ITSMS/ISO 20000-1 accredited certification. He is a member of ISO/IEC JTC 1/SC 27, the international technical committee responsible for information security, cyber security and privacy standards, and chairs the UK National Standards Body’s technical committee IST/33 (information security, cyber security and privacy protection) that mirrors it. Steve was an active member of IST/33/-/6, which developed BS 7799-3. 

    LanguageEnglish
    Publisheritgovernance
    Release dateSep 10, 2019
    ISBN9781787781382
    Information Security Risk Management for ISO 27001/ISO 27002, third edition
    Author

    Alan Calder

    Alan Calder is a leading author on IT governance and information security issues. He is the CEO of GRC International Group plc, the AIM-listed company that owns IT Governance Ltd. Alan is an acknowledged international cyber security guru. He has been involved in the development of a wide range of information security management training courses that have been accredited by the International Board for IT Governance Qualifications (IBITGQ). He is a frequent media commentator on information security and IT governance issues, and has contributed articles and expert comment to a wide range of trade, national and online news outlets.

    Read more from Alan Calder

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      Book preview

      Information Security Risk Management for ISO 27001/ISO 27002, third edition - Alan Calder

      Information Security Risk Management

      for

      ISO 27001 / ISO 27002

      Information Security

      Risk Management for

      ISO 27001 / ISO 27002

      Third edition

      ALAN CALDER

      STEVE G WATKINS

      Every possible effort has been made to ensure that the information contained in this book is accurate at the time of going to press, and the publisher and the author cannot accept responsibility for any errors or omissions, however caused. Any opinions expressed in this book are those of the author, not the publisher. Websites identified are for reference only, not endorsement, and any website visits are at the reader’s own risk. No responsibility for loss or damage occasioned to any person acting, or refraining from action, as a result of the material in this publication can be accepted by the publisher or the author.

      Apart from any fair dealing for the purposes of research or private study, or criticism or review, as permitted under the Copyright, Designs and Patents Act 1988, this publication may only be reproduced, stored or transmitted, in any form, or by any means, with the prior permission in writing of the publisher or, in the case of reprographic reproduction, in accordance with the terms of licences issued by the Copyright Licensing Agency. Enquiries concerning reproduction outside those terms should be sent to the publisher at the following address:

      IT Governance Publishing Ltd

      Unit 3, Clive Court

      Bartholomew’s Walk

      Cambridgeshire Business Park

      Ely, Cambridgeshire

      CB7 4EA

      United Kingdom

      www.itgovernancepublishing.co.uk

      © IT Governance Ltd, 2007, 2010, 2019.

      The authors have asserted their rights of the author under the Copyright, Designs and Patents Act, 1988, to be identified as the authors of this work.

      First published in the United Kingdom in 2007 (as Information Security Risk Management for ISO 27001 / ISO17799) by IT Governance Publishing.

      Second edition published in the United Kingdom in 2010 by IT Governance Publishing

      ISBN 978-1-84928-149-2

      Third edition published in the United Kingdom in 2019 by IT Governance Publishing

      ISBN: 978-1-78778-138-2

      ABOUT THE AUTHORS

      Alan Calder founded IT Governance Limited in 2002 and began working full time for the company in 2007. He is now Group CEO of GRC International Group plc, the AIM-listed company that owns IT Governance Ltd. Prior to this, Alan had a number of roles including CEO of Business Link London City Partners from 1995 to 1998 (a government agency focused on helping growing businesses to develop), CEO of Focus Central London from 1998 to 2001 (a training and enterprise council), CEO of Wide Learning from 2001 to 2003 (a supplier of e-learning) and the Outsourced Training Company (2005). Alan was also chairman of CEME (a public private sector skills partnership) from 2006 to 2011.

      Alan is an acknowledged international cyber security guru and a leading author on information security and IT governance issues. He has been involved in the development of a wide range of information security management training courses that have been accredited by the International Board for IT Governance Qualifications (IBITGQ). Alan has consulted for clients in the UK and abroad, and is a regular media commentator and speaker.

      Steve G Watkins is an executive director at GRC International Group plc. He is a contracted technical assessor for UKAS – advising on its assessments of certification bodies offering ISMS/ISO 27001 and ITSMS/ISO 20000-1 accredited certification and also undertakes information security assessments of forensic science laboratories seeking accreditation to the Forensic Science Regulator’s codes of practice and conduct.

      He is a member of ISO/IEC JTC 1/SC 27, the international technical committee responsible for information security, cyber security and privacy standards, and chairs the UK National Standards Body’s technical committee IST/33 (information security, cyber security and privacy protection) that mirrors it. Steve is also involved with technical committees: RM/1 (risk management) and RM/1/-/3 (responsible for BS 31111, providing guidance for boards and senior management on cyber risk and resilience); IST/060/02 (IT service management) and IDT/001/0-/04 (data protection).

      Steve was an active member of IST/33/-/6, which developed BS 7799-3.

      Alan Calder and Steve G Watkins have written a number of other books together, including IT Governance: An International Guide to Data Security and ISO 27001/ISO 27002 (seventh edition published by Kogan Page, 2019).

      A list of all their publications can be found at the back of this book.

      CONTENTS

      Introduction

      Chapter 1: Risk management

      Risk management: two phases

      Enterprise risk management

      Chapter 2: Risk assessment methodologies

      Publicly available risk assessment standards

      Qualitative versus quantitative

      Quantitative risk analysis

      Qualitative risk analysis

      Chapter 3: Risk management objectives

      Risk acceptance or tolerance

      Information security risk management objectives

      Risk management and process models

      Chapter 4: Roles and responsibilities

      Senior management commitment

      The (lead) risk assessor

      Other roles and responsibilities

      Chapter 5: Risk assessment software

      Gap analysis tools

      Vulnerability assessment tools

      Penetration testing

      Risk assessment tools

      Risk assessment tool descriptions

      Chapter 6: Information security policy and scoping

      Information security policy

      Scope of the ISMS

      Chapter 7: The ISO 27001 risk assessment

      Overview of the risk assessment process

      Chapter 8: Information assets

      Assets within the scope

      Grouping of assets

      Asset dependencies

      Asset owners

      Sensitivity classification

      Are vendors assets?

      What about duplicate copies and backups?

      Identification of existing controls

      Chapter 9: Threats and vulnerabilities

      Threats

      Vulnerabilities

      Technical vulnerabilities

      Chapter 10: Scenario-based risk assessment

      Chapter 11: Impact, including asset valuation

      Impacts

      Defining impact

      Estimating impact

      The asset valuation table

      Business, legal and contractual impact values

      Reputational damage

      Chapter 12: Likelihood

      Risk analysis

      Information to support assessments

      Chapter 13: Risk level

      The risk scale

      Boundary calculations

      Mid-point calculations

      Chapter 14: Risk treatment and the selection of controls

      Types of controls

      Risk assessment and existing controls

      Residual risk

      Risk sharing

      Optimising the solution

      Chapter 15: The Statement of Applicability

      Drafting the Statement of Applicability

      Chapter 16: The gap analysis and risk treatment plan

      Gap analysis

      Risk treatment plan

      Chapter 17: Repeating and reviewing the risk assessment

      Appendix 1: vsRisk Cloud

      Appendix 2: ISO 27001 implementation resources

      Appendix 3: Books by the same authors

      Further reading

      INTRODUCTION

      In today’s information economy, the development, exploitation and protection of information and associated assets are key to the long-term competitiveness and survival of corporations and entire economies. The protection of information and associated assets – information security – is therefore overtaking physical asset protection as a fundamental corporate governance responsibility. An information security management system (ISMS)that provides a systematic approach for establishing, implementing, operating, monitoring, reviewing, maintaining and improving an organization’s information security to achieve business objectives¹ has become a critical corporate discipline, alongside marketing, sales, HR and financial management.

      A key corporate governance objective is to ensure that the organisation has an appropriate balance of risk and reward in its business operations and, as a consequence, enterprise risk management (ERM) increasingly provides a framework within which organisations can assess and manage risks in their business plan. The recognition of substantial, strategic risk in information and communication technologies has led to the development of IT governance.²

      The changing global economy, together with recent corporate and IT governance developments, all provide the context within which organisations have to assess risks to the information assets on which their organisations, and the delivery of their business plan objectives, depend. Information security management decisions are entirely driven by specific decisions made as an outcome of a risk assessment process in relation to identified risks and specific information assets.

      Risk assessment is, therefore, the core competence of information security management.

      The Introduction (Clause 0)of ISO/IEC 27002:2013 (ISO 27002), the international code of best practice for ISMSs, supports this business- and risk-oriented approach: Resources employed in implementing controls need to be balanced against the business harm likely to result from security issues in the absence of those controls. The results of a risk assessment will help guide and determine the appropriate management action and priorities for managing information security risks and for implementing controls selected to protect against these risks.³

      A growing number of organisations are adopting this approach to the management of risk. A number of national or proprietary standards that deal with information security risk management have emerged over the years. They all have much in common. ISO 27001 is the international standard that sets out the requirements for an ISMS and provides an approach to risk management consistent with all other guidance; indeed many of the other frameworks that are available are based on ISO 27001. This approach is also appropriate for organisations complying with the Payment Card Industry Data Security Standard (PCI DSS), and supports compliance with other legal and regulatory requirements, such as the EU’s General Data Protection Regulation (GDPR) and Directive on security of network and information systems (NIS Directive).

      Of course, every organisation needs to determine its criteria for accepting risks, and identify the levels of risk it will accept. It is a truism to point out that there is a relationship between the levels of risk and reward in any business. Most businesses, particularly those subject to the Sarbanes-Oxley Act of 2002 and, in the UK, the FRC’s Guidance on Risk Management, Internal Control and Related Financial and Business Reporting and the UK Corporate Governance Code, will want to be very clear about which risks they will accept and which they won’t, the extent to which they will accept risks and how they wish to control them. Management needs to specify its approach, in general and in particular, so that the business can be managed within that context. As we have indicated, risk assessment, as an activity, should be approached within the context of the organisation’s broader ERM framework.

      All too often, organisations enter into risk management without considering that the practice must be part of something larger. A risk assessment is not an end in itself: a risk assessment must provide outputs that are useful to the organisation. The goal of a risk assessment methodology must be to effect the organisation’s ISMS.

      While ISO 27002 is a code of practice, ISO/IEC 27001:2013 (ISO 27001) is a specification that sets out the requirements for an ISMS. ISO 27001 is explicit in requiring that an information security risk assessment is used to inform the selection of controls.⁴ Risk assessment, as we’ve said, is therefore the core competence of information security management.

      Organisations that design and implement an ISMS in line with ISO 27001 can have it assessed by a third-party certification body and if, after audit, it is found to be in line with ISO 27001, an accredited certificate of conformity can be issued.⁵

      This standard is increasingly seen as offering a practical solution to the growing range of information-related regulatory requirements, as well as helping organisations to more cost-effectively counter the increasingly sophisticated and varied range of information security threats in the modern information economy.⁶ As a result, a rapidly growing number of companies around the world are seeking certification to ISO 27001, providing a means of demonstrating to clients and other stakeholders their commitment and intent with regard to information security.

      An ISMS developed and based on risk acceptance criteria, and using third-party accredited certification to provide an independent verification of the level of assurance, is an extremely useful management tool. Such an ISMS offers the opportunity to define and monitor service levels internally, as well as in contractor/partner organisations, thus demonstrating the extent to which there is effective control of those risks for which directors and senior management are accountable.

      It is becoming increasingly common for ISO 27001 certification to be a prerequisite in service specification procurement documents and,

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