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Tenable One OT Exposure
Columbia, Maryland, United States
What it is
Tenable One OT Exposure is web-based software for operational technology security. It uses passive monitoring to observe OT network activity and provides OT asset discovery for identifying devices in those environments. Supported protocols include Modbus, Modbus UMAS, Modbus MODICON, CIP, PROFINET, DNP3, IEC 60870-5-104, MMS, S7/S7+, and IEC 61850. The product supports SIEM integration, allowing OT visibility to connect with security information and event management workflows. Tenable lists two purchase models: a standalone subscription and a perpetual license with maintenance. Pricing is available on request for both. Each model requires one license for every detected IP address, so licensing follows the number of IP addresses the software identifies. The product is offered on the web. Tenable was founded in 2002 and is headquartered in Columbia, Maryland, United States. Its listed functions focus on seeing OT assets and activity through passive network monitoring and discovery.
For and against
For
- Passive OT network monitoring
- OT asset discovery
- Supports ten listed OT protocols
- SIEM integration
- Subscription and perpetual options
Against
- Pricing is available only on request
- One license required per detected IP
- Web platform only
The verdict
Tenable One OT Exposure focuses on passive OT monitoring, asset discovery, and SIEM connectivity. Its licensing is tied to detected IP addresses, with subscription and perpetual purchase options.
Who it suits
Tenable One OT Exposure suits organizations that need visibility into operational technology assets and network activity. It is relevant for teams connecting OT monitoring with SIEM systems.
Plans and prices
Standalone subscription
One license for each detected IP address
Read 20 Sep 2026 · docs.tenable.com
Perpetual/maintenance
One license for each detected IP address
Read 20 Sep 2026 · docs.tenable.com