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OPSWAT OTfuse is a crucial, last line of defense for OT assets that need it most.

OPSWAT OTfuse is an intelligent Intrusion Detection and Prevention System (IDPS) for mission-critical PLCs, VFDs, DCSs, and other industrial assets.


Completely transparent IPS/IDS appliance for critical OT assets

Protect the most critical OT assets first, by applying highly granular device access policies, and enforcing device access zones.

Protection without costly redesign or segmentation projects

Slides seamlessly inline at the cabinet level of OT/ICS assets, without a need for network segment changes or firewall configurations.

Otfuse document


Establishes a virtual perimeter around each critical OT asset, complementing industrial firewalls deployed higher up in the network.


Easy to Deploy & Scale

Installs quickly and seamlessly at the cabinet level, targeting the most critical and vulnerable assets first.


Self-learns your OT network subnets and automatically enforces which device and protocols are permitted to communicate with the OT asset.


Intuitive to Operate

Starts working right away with no reconfiguration of existing network segmentation and subnet address scheme


Eliminates unauthorized device config changes, resets, reads, and logic update preventing both malicious intrusions and unintentional access.


Eliminates Critical Threats

Including unknown nodes or clients, rogue scanning or communication, unscheduled reconfig or update, very high message rates (DoS), and fake devices (IP spoofing)

We are using the OTfuse at a field location to secure a connection to a 3rd party for a data sharing agreement. With OTfuse we can enforce and audit that the 3rd party can access values included in the scope of the data sharing agreement, and nothing more.


-- Kirk Nussbaumer, Supervisor Ops Technology, NRM

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