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Head-to-head · IoT Security Software

Microsoft Defender for IoT vs Fortinet OT Security Platform

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Microsoft Defender for IoT #1 in IoT Security Software 9.3/10 Pricing on request ✓ 4 of 5 features Visit Microsoft
Fortinet OT Security Platform #8 in IoT Security Software 8.6/10 Pricing on request ✓ 5 of 5 features Contact Fortinet

Microsoft Defender for IoT leads on 0 checks, Fortinet OT Security Platform on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMicrosoft Defender for IoT · 9.3/10
  • Most featuresFortinet OT Security Platform · 5 of 5

Microsoft Defender for IoT scores higher on our rubric for iot security software: 9.3 against 8.6 out of 10; our editors rank them #1 and #8.

Microsoft Defender for IoT is the better fit for organizations standardizing OT security on Microsoft. Fortinet OT Security Platform is the better fit for organizations using Fortinet for OT protection.

  • Microsoft Defender for IoT fits best

    Organizations standardizing OT security on Microsoft

  • Fortinet OT Security Platform fits best

    Organizations using Fortinet for OT protection

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Side by side

Feature Microsoft Defender for IoT 9.3/10 Visit ↗ Fortinet OT Security Platform 8.6/10 Visit ↗
At a glance
Editor score 9.3 8.6
Ranking #1 in IoT Security Software #8 in IoT Security Software
Best for Organizations standardizing OT security on Microsoft Organizations using Fortinet for OT protection
Pricing model Paid Paid
Starting price Pricing on request Pricing on request
Free plan — Not checked yet
Free trial — —
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web, Windows Web
Integrations 3 integrations 6 integrations
Built for Mid-market, Enterprise Mid-market, Enterprise
Features Microsoft Defender for IoT 4/5 · Fortinet OT Security Platform 5/5
IoT asset discovery ✓ ✓
Industrial OT coverage ✓ ✓
Threat detection ✓ ✓
Device segmentation Not checked yet ✓ (best)
Incident response ✓ ✓
Specs
Deployment options Hybrid Hybrid
Our review
Pros
  • Discovers IoT and OT assets with protocol and communications context.
  • Combines passive and active agentless monitoring with OT-aware threat detection.
  • Offers virtual-machine or physical sensors, with cloud or local management.
  • Combines OT asset discovery with device and network segmentation.
  • Adds protocol signatures, virtual patching, and vulnerability protection.
  • Integrates response and monitoring across Fortinet security products.
Cons
  • Pricing requires contacting sales, and licensing varies by tier and site or device count.
  • There is no permanent free plan; the Enterprise IoT offer is a free trial.
  • Listed support channels are limited to documentation.
  • Assembled from multiple Fortinet products, not a standalone software license.
  • Pricing requires contacting sales.
  • Its ecosystem fit centers on organizations using Fortinet products.
Our verdict

Microsoft Defender for IoT monitors enterprise IoT and industrial environments, including ICS and OT networks. It is intended for security leaders, OT security administrators, industrial engineers, risk managers, and SOC analysts who need…

Read the review →

Fortinet OT Security Platform brings networking, security, and security-operations capabilities together to protect industrial and operational technology environments. It is aimed at mid-market and enterprise organizations securing…

Read the review →
  1. Microsoft Defender for IoTIoT Security Software 9.3Pricing on request
  2. Fortinet OT Security PlatformIoT Security Software 8.6Pricing on request

Strengths and trade-offs

  • Microsoft Defender for IoT — where it wins

    • Discovers IoT and OT assets with protocol and communications context.
    • Combines passive and active agentless monitoring with OT-aware threat detection.
    • Offers virtual-machine or physical sensors, with cloud or local management.

    Where it doesn't

    • Pricing requires contacting sales, and licensing varies by tier and site or device count.
    • There is no permanent free plan; the Enterprise IoT offer is a free trial.
    • Listed support channels are limited to documentation.

  • Fortinet OT Security Platform — where it wins

    • Combines OT asset discovery with device and network segmentation.
    • Adds protocol signatures, virtual patching, and vulnerability protection.
    • Integrates response and monitoring across Fortinet security products.

    Where it doesn't

    • Assembled from multiple Fortinet products, not a standalone software license.
    • Pricing requires contacting sales.
    • Its ecosystem fit centers on organizations using Fortinet products.
  • Microsoft Defender for IoT9.3/10 · Pricing on request

    Agentless OT monitoring and threat response for organizations using Microsoft security tools.

    Visit MicrosoftFull verdict →
  • Fortinet OT Security Platform8.6/10 · Pricing on request

    A Fortinet portfolio for OT visibility, segmentation, threat detection, and response.

    Contact FortinetFull verdict →

More comparisons

All IoT security software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update