Imagine this. You have 650 buildings distributed across a state, a campus that really is a small city with all of the IoT endpoints required to run smart energy, water, fire, safety, lighting, and cooling among many other IoT elements. Imagine all of these distributed IoT endpoints running on a flat L2 network – the same network used by all of the students, faculty, administrators, and personnel within the Penn State system. Now imagine having a team of only four people to connect and protect those endpoints – there were just too many sleepless nights for Tom Walker and his team. Tom and his team knew they needed to do something different and it started with wanting to be able to segment his systems from all of the other chaos on the shared network. He looked at the traditional IT alternatives like next-gen firewalls and VPNs and using a combination of ACLs, VLANs, and NAC with port lockdown. But the complexity and administrative overhead was just too high, not to mention they can never accomplish true segmentation.
https://zerotrust.temperednetworks.com/the-power-of-innovative-customers/
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