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Cybersecurity Standard
EN 50742
prEN 50742: Safety of Machinery - Protection Against Data Corruption
Official DocumentationOverview
EN 50742 addresses cybersecurity where data corruption can affect machinery safety. It introduces a route for linking cybersecurity threats to safety-related security levels and can be used together with IEC 62443 and machinery safety evidence.
Scope
Applies to machinery and machinery-related control systems where intentional or accidental data corruption may influence safety functions, operating limits, or protective measures.
Key Requirements
1 Safety-relevant security scope definition
2 SRSL reasoning and assignment
3 Threat modelling for machinery data paths
4 Method A / Method B route selection
5 IEC 62443 alignment where appropriate
6 Traceability from threat to safety impact
7 Verification evidence for protective measures
8 Review-ready SRSL assessment record
Target Audience
Machinery manufacturers
Industrial equipment builders
Safety control system engineers
OT cybersecurity teams
Certification and assessment teams
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