IEC TS 62443-6-1:2024

Security for industrial automation and control systems - Part 6-1: Security evaluation methodology for IEC 62443-2-4

IEC TS 62443-6-1:2024 specifies the evaluation methodology to support interested parties (e.g. during conformity assessment activities) to achieve repeatable and reproducible evaluation results against IEC 62443-2-4 requirements. This document is intended for first-party, second-party or third-party conformity assessment activity, for example by product suppliers, service providers, asset owners and conformity assessment bodies.
NOTE 1 62443-2-4 specifies requirements for security capabilities of an IACS service provider. These security capabilities can be offered as a security program during integration and maintenance of an automation solution.
NOTE 2 The term “conformity assessment” and the terms first-party conformity assessment activity, second-party conformity assessment activity and third-party conformity assessment activity are defined in ISO/IEC 17000.

General Information

• Status: Published
• Publication Date: 11-Mar-2024
• ICS: 25.040.40 - Industrial process measurement and control
• Technical Committee: TC 65 - Industrial-process measurement, control and automation
• Drafting Committee: WG 10 - TC 65/WG 10
• Current Stage: PPUB - Publication issued
• Start Date: 22-Mar-2024
• Completion Date: 12-Mar-2024

Standards Content (Sample)

IEC TS 62443-6-1 ®
Edition 1.0 2024-03
TECHNICAL
SPECIFICATION
Security for industrial automation and control systems –
Part 6-1: Security evaluation methodology for IEC 62443-2-4

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Secretariat Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews, graphical symbols and the glossary.
committee, …). It also gives information on projects, replaced With a subscription you will always have access to up to date
and withdrawn publications. content tailored to your needs.

IEC Just Published - webstore.iec.ch/justpublished
Electropedia - www.electropedia.org
Stay up to date on all new IEC publications. Just Published
The world's leading online dictionary on electrotechnology,
details all new publications released. Available online and once
containing more than 22 500 terminological entries in English
a month by email.
and French, with equivalent terms in 25 additional languages.

Also known as the International Electrotechnical Vocabulary
IEC Customer Service Centre - webstore.iec.ch/csc
(IEV) online.
If you wish to give us your feedback on this publication or need

further assistance, please contact the Customer Service
Centre: [e-mail].
IEC TS 62443-6-1 ®
Edition 1.0 2024-03
TECHNICAL
SPECIFICATION
Security for industrial automation and control systems –

Part 6-1: Security evaluation methodology for IEC 62443-2-4

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.040.40  ISBN 978-2-8322-8328-8

– 2 – IEC TS 62443-6-1:2024 © IEC 2024
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and abbreviated terms . 6
3.1 Terms and definitions. 6
3.2 Abbreviated terms . 8
4 Overview . 9
5 Methodology for the evaluation . 9
5.1 Scoping of the subject under evaluation (SuE) . 9
5.2 Content of conformity statements and conformance evidence . 9
5.3 Evaluation of conformity statement and conformance evidence . 10
5.4 Particular requirements for evaluations related to ML-4. 10
6 Table used for evaluation . 10
6.1 Overview . 10
6.2 Evaluation criteria . 11
6.3 Conformance evidence related to maturity level ML-1 . 11
6.4 Conformance evidence related to maturity level ML-2 . 11
6.5 Conformance evidence related to maturity level ML-3 . 11
6.6 Conformance evidence related to maturity level ML-4 . 12
6.7 Overview of evaluation criteria and examples of conformance evidence
(Table 1) . 13
Annex A (informative) Legend for maturity levels . 131
Bibliography . 132

Table 1 – Overview of evaluation criteria and examples of conformance evidence . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SECURITY FOR INDUSTRIAL AUTOMATION AND CONTROL SYSTEMS –

Part 6-1: Security evaluation methodology for IEC 62443-2-4

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC TS 62443-6-1 has been prepared by IEC technical committee TC 65: Industrial-process
measurement, control and automation. It is a Technical Specification.
The text of this Technical Specification is based on the following documents:
Draft Report on voting
65/1030/DTS 65/1042A/RVDTS
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this Technical Specification is English.

– 4 – IEC TS 62443-6-1:2024 © IEC 2024
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at https://www.iec.ch/members_experts/refdocs. The main document types developed by IEC
are described in greater detail at https://www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 62443 series, published under the general title Security for industrial
automation and control systems, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

INTRODUCTION
Repeatable and comparable evaluations of the security program according to IEC 62443-2-4
require a common understanding for acceptable evaluation criteria and conformance evidence.
This document supports service providers and evaluators to do a conformity assessment by
evaluating the security program against the requirements of IEC 62443-2-4.
This document specifies the evaluation methodology to support interested parties, for example
during conformity assessment activities to achieve repeatable and reproducible evaluation
results against IEC 62443-2-4 requirements.

___________
Throughout the document, when reference is being made to IEC 62443-2-4 (undated), this means
IEC 62443-2-4:2015 and IEC 62443-2-4:2015/AMD1:2017 (Ed.1). A consolidated version of IEC 62443-2-4 is
available.
– 6 – IEC TS 62443-6-1:2024 © IEC 2024
SECURITY FOR INDUSTRIAL AUTOMATION AND CONTROL SYSTEMS –

Part 6-1: Security evaluation methodology for IEC 62443-2-4

1 Scope
This part of IEC 62443 specifies the evaluation methodology to support interested parties (e.g.
during conformity assessment activities) to achieve repeatable and reproducible evaluation
results against IEC 62443-2-4 requirements. This document is intended for first-party, second-
party or third-party conformity assessment activity, for example by product suppliers, service
providers, asset owners and conformity assessment bodies.
NOTE 1 62443-2-4 specifies requirements for security capabilities of an IACS service provider. These security
capabilities can be offered as a security program during integration and maintenance of an automation solution.
NOTE 2 The term “conformity assessment” and the terms first-party conformity assessment activity, second-party
conformity assessment activity and third-party conformity assessment activity are defined in ISO/IEC 17000.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 62443-2-4:2015, Security for industrial automation and control systems – Part 2-4: Security
program requirements for IACS service providers
IEC 62443-2-4:2015/AMD1:2017
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
IEC and ISO maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp/
3.1.1
acceptable evaluation criteria
criteria which may be used for an evaluation
Note
...