MACsec

A data-link-layer securityRefers to whether or not IoT devices or data are protected from unauthorized viewers. protocolAn agreed way of doing something. Like a convention, except that protocols tend to be related to processes., largely used with EthernetA very common Layer 1 and 2 standard for wired network connections.. This protects data within a LANA data-link-layer security protocol, largely used with Ethernet. This protects data within a LAN only. It’s normally administered by IT professionals. Not likely to be used within IoT devices. only. It’s normally administered by IT professionals. Not likely to be used within home IoTThe Internet of Things. A broad term covering many different applications where "things"  are interconnected through the internet. devices.