One Segmentation Platform for IT, OT, and Everything In Between
Most environments are a mix of modern IT, legacy systems, OT, IoT, and devices that were never built to host security software. Zero Networks segments them all through the infrastructure you already have, enforcing least privilege across the entire environment with no agents, no new hardware, and no disruption to the devices themselves.
What Zero Protects
If It's on the Network, It's in Scope.
Most segmentation tools draw a line around what they can reach — managed IT, maybe a few IoT categories. Zero Networks segments across the full range of unmanageable devices that make up a real OT environment, using the switches and routers already connecting them.
Enforcement Without Installing Anything
Policy is applied through host-based firewalls on IT devices and ACLs on the switches connecting OT devices — never software on the OT asset itself. If a device can't take an agent, it still gets segmented.
MFA Reaches Privileged OT Access, Not Just IT
Admin protocols — RDP, SSH, RPC, WMI, SMB — get just-in-time, network-layer MFA whether they're touching a server or a plant switch. Standing privileged access to OT infrastructure doesn't exist by default.
Deterministic Policy From Real Traffic
Zero observes actual connections over a learning period and generates least-privilege rules from what's really talking to what — not from asset tags, taxonomies, or manual grouping. No professional services engagement required to get to enforcement.
One Policy Engine, Every Environment
The same automation engine segmenting your data center and cloud also segments OT — one rule set, one console, instead of a separate tool for the plant floor.
Full OT Coverage - Zero New Exposure
Every Device Is in Scope, Not Just What Can Run an Agent
Enforcement happens through host firewalls on IT devices and ACLs on the switches connecting OT assets. PLCs, HMIs, and unmanaged devices get segmented without anyone touching them.
Simulation Removes the Fear of Breaking Production
Every policy can be modeled against real traffic before it's enforced. Teams see exactly what a rule will do before it goes live on a plant network.
Privileged OT Access Requires MFA, Every Time
Just-in-time, network-layer MFA gates admin protocol access to OT infrastructure the same way it gates IT. No standing access for an attacker to find.
Most Security Tools Draw a Line Around What They Can Reach
Managed IT gets covered. PLCs, HMIs, pump controls, and legacy switches get left out — not because they're less critical, but because nothing can be installed on them.
Fragility Makes Teams Afraid to Touch OT at All
A single misconfigured rule can halt production, damage equipment, or create a safety hazard. That risk keeps OT security projects postponed indefinitely.
Standing Privileged Access Sits Open
Admin protocols on OT infrastructure — RDP, SSH, RPC, WMI, SMB — are frequently reachable without any additional verification, giving an attacker a direct path once they're on the network.
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