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Tech riderRev. 20 Sept 2026

Tenable One OT Exposure

Ch 166.1of 17OT and ICS Security Monitoring Software
  1. 1Runs onWeb
  2. 2Passive monitoringYes
  3. 3OT asset discoveryYes
  4. 4Supported protocolsModbus, Modbus UMAS, Modbus MODICON, CIP, PROFINET, DNP3, IEC 60870-5-104, MMS, S7/S7+, IEC 61850
  5. 5SIEM integrationYes
5 lines stated Written from the maker's own pages: tenable.com, docs.tenable.com
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The Tenable One OT Exposure homepage

Overview

Tenable One OT Exposure is web-based software for operational technology security. It provides passive monitoring and OT asset discovery, giving organizations visibility into network activity and connected OT assets. Supported protocols are Modbus, Modbus UMAS, Modbus MODICON, CIP, PROFINET, DNP3, IEC 60870-5-104, MMS, S7/S7+, and IEC 61850. The product also supports SIEM integration for connecting OT observations with security-information workflows. Tenable lists two purchasing routes: a standalone subscription and a perpetual license with maintenance. Both require one license for each detected IP address, while prices are available on request. The software is available through the web. Tenable was founded in 2002 and is headquartered in Columbia, Maryland, United States. The central operating model is passive observation rather than active scanning, paired with discovery of OT devices and protocol-aware visibility. Organizations considering it need to account for licensing tied to detected IP addresses when estimating deployment scope and discussing either the subscription or perpetual-maintenance option with Tenable.

Who it is for

It suits organizations that need passive visibility into operational technology networks, OT asset discovery, and SIEM connectivity. Teams should be prepared to license each detected IP address.

What is good

  • Passive monitoring for OT environments
  • OT asset discovery included
  • Supports ten named OT protocols
  • SIEM integration available
  • Subscription and perpetual options listed

What to know first

  • Pricing is available only on request
  • One license required per detected IP address
  • Web platform only

Verdict

Tenable One OT Exposure focuses on passive OT monitoring, asset discovery, broad protocol support, and SIEM integration. Its IP-based licensing requirement is a key planning detail for deployments with many detected assets.

Tenable One OT Exposure plans and pricing

All plans
Standalone subscription One license for each detected IP address docs.tenable.com · 20 Sept 2026
Perpetual/maintenance One license for each detected IP address docs.tenable.com · 20 Sept 2026

Compared on OT and ICS security monitoring software

Passive monitoring
Yestenable.com
OT asset discovery
Yestenable.com
Supported protocols
Modbus, Modbus UMAS, Modbus MODICON, CIP, PROFINET, DNP3, IEC 60870-5-104, MMS, S7/S7+, IEC 61850tenable.com
SIEM integration
Yestenable.com

Company

Founded
2002tenable.com · 23 Sept 2026
Headquarters
Columbia, Maryland, United Statestenable.com · 23 Sept 2026

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