The OTA APN: Where Your Segmentation Quietly Breaks Down
Most private cellular security programs lean on one control more than any other: the APN. Different devices get different APNs, traffic between them stays isolated, and the network diagram looks clean. Sensors can’t reach controllers. Cameras can’t reach the SCADA segment. The boundaries hold. Until update time. Over-the-air (OTA) updates are where that segmentation gets […]
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