Security planning
1.1
Introduction
14
UM Security BRS-2A
Release
8.7
05/2022
1.1.4 Capability security level
The security requirements, planning steps, and measures in this document deal with the capability
security level 1 (SL-C 1) according to the standard IEC 62443-4-2. SL-C 1 means protection
against casual or coincidental security violations.
Some security requirements, measures, and steps mentioned in this document may exceed the
target security level SL-C 1. They are therefore not strictly required to achieve SL-C 1. They are
nevertheless included when these security measures and steps generally mean little effort and
reasonable effect.
1.1.5 Document Outline
The following main chapters deal with 2 main subjects:
The security of the device itself (see on page 23 “Device security”)
What a secured device can do for the security of your network (see on page 43 “Network
security support”)
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