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Tenable One OT Exposure

C
C tier on OT and ICS Security Monitoring SoftwareScore 5.9 · #11 of 17
Android app
Not listed
Free plan
No
Runs on
Web
tenable.com
The Tenable One OT Exposure homepage
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Summary

Tenable One OT Exposure is web-based software for operational technology security. It provides passive monitoring and OT asset discovery, helping organizations observe network activity and identify assets in OT environments. Supported protocols include Modbus, Modbus UMAS, Modbus MODICON, CIP, PROFINET, DNP3, IEC 60870-5-104, MMS, S7/S7+, and IEC 61850. The product also supports SIEM integration. Tenable lists two purchasing options: a standalone subscription and a perpetual license with maintenance. Neither option has a listed price, and each requires one license for every detected IP address. The software is available on the web. Tenable was founded in 2002 and is headquartered in Columbia, Maryland. Its combination of passive monitoring, asset discovery, protocol support, and SIEM integration is aimed at organizations that need visibility into OT assets and activity.

Who it is for

It may suit organizations seeking OT asset discovery and passive monitoring, especially those working with the listed industrial protocols. SIEM integration may be relevant to teams connecting OT visibility with SIEM systems.

What is good

  • Provides passive monitoring
  • Supports OT asset discovery
  • Supports a range of listed OT protocols
  • SIEM integration is available

What to know first

  • Pricing is on request
  • Licensing is one per detected IP address
  • Available platform is web

Verdict

Tenable One OT Exposure focuses on passive monitoring and OT asset discovery, with support for numerous listed protocols and SIEM integration. Review the per-detected-IP licensing model and request pricing to assess fit.

Tenable One OT Exposure plans and pricing

All plans
Standalone subscription Not published One license for each detected IP address docs.tenable.com · 20 Sept 2026
Perpetual/maintenance Not published 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

Best Tenable One OT Exposure alternatives

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Btier Honeywell Forge #1 7.0 Android Btier Nozomi Networks Platform #2 7.0 FreeCtier EmberOT #3 6.8 FreeCtier Tenable One Attack Surface Management #4 6.6 Ctier Kaspersky Industrial CyberSecurity Platform #5 6.5 Ctier OTDefend #6 6.5

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