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IEC TR 63069
Edition 1.0 2019-05
TECHNICAL
REPORT
colour
inside
Industrial-process measurement, control and automation – Framework for
functional safety and security
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IEC TR 63069
Edition 1.0 2019-05
TECHNICAL
REPORT
colour
inside
Industrial-process measurement, control and automation – Framework for
functional safety and security
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 13.110; 25.040.40; 29.020 ISBN 978-2-8322-6925-1
– 2 – IEC TR 63069:2019 IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
0.1 Purpose of this document . 6
0.2 Background. 6
0.3 Issues on the terminology . 6
0.4 Target audience . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, symbols, abbreviated terms and conventions . 7
3.1 Terms and definitions defined for this document . 7
3.2 Abbreviated terms . 15
3.3 Explanation for common terms with different definitions . 15
4 Context of security related to functional safety . 20
4.1 Description of functions. 20
4.2 Security environment . 20
5 Guiding principles . 22
6 Life cycle recommendations for co-engineering . 22
6.1 General . 22
6.2 Managing security related safety aspects . 25
7 Risk assessment considerations . 25
7.1 Risk assessment at higher level . 25
7.2 Trade-off analysis . 26
7.3 Considerations for threat-risk assessment . 26
7.3.1 General . 26
7.3.2 Recommendations to the threat-risk assessment . 27
7.3.3 Considerations related to security countermeasures . 27
7.3.4 Vulnerabilities and examples of root causes . 27
7.4 Malevolent and unauthorized actions . 27
7.4.1 General . 27
7.4.2 Reasonably foreseeable misuse (safety) . 28
7.4.3 Prevention of malevolent and unauthorized actions (security) . 28
7.4.4 Combination of password protection measures . 28
8 Incident response readiness and incident handling . 28
8.1 General . 28
8.2 Incident response readiness . 28
8.3 Incident handling . 28
Bibliography . 30
Figure 1 – Overview of functions of an IACS . 20
Figure 2 – Safety domain and security domain . 21
Figure 3 – Security environment . 21
Figure 4 – Safety and security interaction . 23
Figure 5 – Safety and security risk assessments as part of a risk assessment at higher
level . 26
Table 1 – Terms with multiple definitions . 15
Table 2 – Recommended activities in life cycle stages . 24
– 4 – IEC TR 63069:2019 IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL-PROCESS MEASUREMENT, CONTROL AND AUTOMATION –
FRAMEWORK FOR FUNCTIONAL SAFETY AND SECURITY
FOREWORD
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The main task of IEC technical committees is to prepare International Standards. However, a
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data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC TR 63069 has been prepared by IEC technical committee TC 65: Industrial-process
measurement, control and automation.
The text of this Technical Report is based on the following documents:
Draft DTR Report on voting
65/698/DTR 65/713A/RVDTR
Full information on the voting for the approval of this Technical Report can be found in the
report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
IMPORTANT – The 'colour inside' logo on the cover page of this publication 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.
– 6 – IEC TR 63069:2019 IEC 2019
INTRODUCTION
0.1 Purpose of this document
Many sector specific guides, standards and technical specifications have been developed in
the fields of safety and security. However, a generic document for framework for safety and
security is largely expected by industry actors. Even the terms "safety" and "security" are
sometimes used for different meanings in these documents. As a result, it can be difficult to
apply them holistically at the same time to a manufacturing system.
0.2 Background
Security has become a new factor to be considered in system engineering. The parts of the
IEC 61508 series published in 2010 took into account that security can impact functional
safety.
In IEC TC 65 (Industrial-process measurement, control and automation), considerable
concerns arose with respect to the impacts of security incidents to safety functions in IACS
(industrial automation and control systems); many complex systems of that kind are becoming
connected systems (particularl
...