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Introduction to the ISO 27000 series

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Introduction to the ISO 27000 series ISO 27000 principles and vocabulary (in development) ISO 27001 ISMS requirements (BS7799 Part 2) – PowerPoint PPT presentation

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Title: Introduction to the ISO 27000 series


1
Introduction to theISO 27000 series
  • ISO 27000 principles and vocabulary (in
    development)
  • ISO 27001 ISMS requirements (BS7799 Part 2)
  • ISO 27002 (ISO/ IEC 177992005) from 2007
    onwards
  • ISO 27003 ISMS Implementation guidelines (due
    2007)
  • ISO 27004 ISMS Metrics and measurement (due
    2007)
  • ISO 27005 ISMS Risk Management
  • ISO 27006 27010 allocation for future use

2
ISO 27000 Principles Vocabulary
  • This standard will explain the terminology for
    all the 27000 series family of standards
  • This development will address global concerns on
    definitions that vary from country to country
    so consistency will be established
  • Hopefully these principles will impact on other
    standards like COBIT(IT Processes) and ITIL (IT
    Service Delivery) and avoid any confusion

3
ISO 27001 ISMS Requirements
  • ISO/ IEC is progressing an ISMS standard based on
    BS7799 Part 2
  • With some improvements and changes
  • Annex B (Implementation Guidance has been
    removed) this will become 27003
  • At the final stage of editorial balloting
  • Estimated publication date November 2005
  • Once ISO 27001 is published BS7799 Part 2 will be
    withdrawn
  • Interim Period (Now until November 2005)
  • The technically stable version ISO/IEC FDI 27001
    is likely to be available for purchase from BSI.
  • BSI have quoted those purchasing the FDIS
    version now will get a copy of the ISO version
    when published (estimated to be November 2005)

4
ISO 27001 ISMS Requirements
BS 7799 Part 2 2002 (Clause No) ISO/ IEC 270012005 (Clause No) Comments and interpretation on changes and differences
1.2 Application 1.2 Application The Application clause has been re-organised, so that the first paragraph concentrates on the fact the exclusions from Clauses 4 8 of ISO/IEC 27001 are not acceptable, and the second paragraph concentrates on explaining the conditions under which the control exclusions are possible. The content of and the requirements in this clause have not been changed.
3 Terms and Definitions 3 Terms and Definitions New definitions have been added from ISO/IEC 13335-12004, ISO/IEC TR180442004 and ISO/IEC Guide 732002. some of the existing definitions have been modified to align with the standard ISO/IEC 13335 12004. The definitions of risk treatment and statement of Applicability have been modified for clarification purposes.
4.2.1 Establish the ISMS 4.2.1 Establish the ISMS Remains the same
Item a) Define the scope of the ISMS Item a) Define the scope and boundaries of the ISMS This clarifies that the scope and boundaries of the ISMS shall be defined to ensure that details of and justification for any exclusions from the scope are included, with a reference to clause 1.2 Application of this standard.
Item c) Define a systematic approach to risk assessment The second sentence in Item c) Define the risk assessment approach of the organisation has been deleted and a new sentence added The second sentence of Item c) was deleted. The rest of the text remains and a new sentence has been added to provide a clarification of and addition to the existing requirement, stating that the risk assessment method selected shall produce comparable and reproducible results.
Item g) select control objectives and controls for the treatment of risks Item g) select control objectives and controls for the treatment of risks has been extended This is clarification of and addition to the existing requirement addressing that the selection shall take account of the criteria for accepting risks (4.2.1c) as well as legal, regulatory and contractual requirements.
5
ISO 27001 ISMS Highlights
  • Clarifies and improves existing PDCA process
    requirements
  • ISMS scope (inc. details justification for any
    exclusions)
  • Approach to risk assessment (to produce
  • comparable reproducible results)
  • Selection of controls (criteria for accepting
    risks)
  • Statement of Applicability (currently
    implemented)
  • Reviewing risks
  • Management commitment
  • ISMS internal audits
  • Results of effectiveness and measurements
  • (summarised statement on measures of
    effectiveness)
  • Update risk treatment plans, procedures and
    controls

6
ISO 27002 ISO/IEC 177992005(from Nov05)
  • 11 sections specify 39 control objectives to
    protect information assets
  • Provides 134 best practice controls that can be
    adopted based on a risk assessment process but
    leaves an organisation free to select controls
    not listed in the standard giving great
    flexibility in implementation
  • (but challenging for certification bodies!)
  • New recommendations cover
  • - security of external service delivery
    provisioning of outsourcing
  • - patch management and other current issues
  • - security prior to, during and at termination
    of employment
  • - guidance on risk management, and a section on
    incident management
  • - mobile, remote distributed communications
    information processing

7
ISO 27003 ISMS Implementation Guidelines
  • A new (JTC 1/SC27) project on implementation
    guidelines to support the new requirement
    specification standard
  • Annex B of BS7799 Part 2 is the basis-
  • - overview
  • - management responsibilities
  • - governance regulatory compliance
  • - personal security human resources
  • - asset management
  • - availability/continuity of business processes
  • - handling information incidents
  • - access control
  • - risk management case studies

8
ISO 27004 Metrics and Measurement
  • ISO/IEC has a new project to develop an ISMS
    Metrics and Measurements Standard
  • This development is aimed at addressing how to
    measure the effectiveness of ISMS implementations
    (processes and controls)
  • Performance targets
  • What to measure
  • How to measure
  • When to measure

9
ISO 27005 ISMS Risk Management
  • A new standard on Information Security Risk
    Management an ISO version of the soon to be
    published BS7799 Part 3
  • This standard is being drawn up by the
    DTI/Cabinet Office with significant input from
    CSIA (central Sponsor for Information Assurance)
    draft for consultation came out in July 2005
    with consultation period finishing in October
    2005
  • Will be linked to MITS-2 - a new management
    standard for ICT risk management currently in
    development

10
ISO 27000 series Benefits/Obstacles
  • BENEFITS
  • Alignment to ISO 9000 series on Quality
    Management
  • Ensured a level of consistency in IS Management
  • International cohesion
  • Professional acknowledgement
  • Governance Benefits
  • OBSTACLES
  • International acceptance take-up
  • Nation state support agreement
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