Table of Contents - Y Suppl. 106 (05/2026) - ITU-T Y.4221 – Supplement on security requirements for sensing devices to access Internet of things (IoT)-based electric power infrastructure monitoring systems

1	Scope
2	References
3	Definitions
	3.1	Terms defined elsewhere
	3.2	Terms defined in this Supplement
4	Abbreviations and acronyms
5	Conventions
6	Overview of sensing devices to access IoT-EPIMS
	6.1	Interactions for sensing devices to access IoT-EPIMS
	6.2	Classifications for sensing devices and data in IoT-EPIMS
7	Security risks for sensing devices to access IoT-EPIMS
	7.1	Security risks of sensing device hijacking
	7.2	Security risks of upstream data leakage
	7.3	Security risks of upstream data tampering
	7.4	Security risks of downstream data leakage
	7.5	Security risks of downstream data tampering
	7.6	Security risks of DDoS attacks
8	Security requirements for sensing devices to access IoT-EPIMS
	8.1	Security requirements of sensing devices
	8.2	Interaction requirements between sensing devices and gateway devices
	8.3	Security requirements of gateway devices
	8.4	Interaction requirements between gateway devices and the IoT management platform
	8.5	Security requirements of the IoT management platform
	8.6	Security requirements of the data platform
Appendix I – Use cases of sensing devices to access IoT-EPIMS
	I.1	General sensing devices to access IoT-EPIMS for overhead line monitoring
	I.2	Specific sensing devices to access IoT-EPIMS for electricity metering
	I.3	Control sensing devices to access IoT-EPIMS for EPI control in a substation
Bibliography