Microsoft Defender for IoT
IoT security solutions
System security software
OT security tools software
- Features
- Ease of use
- Ease of management
- Quality of support
- Affordability
- Market presence
Take the quiz to check if Microsoft Defender for IoT and its alternatives fit your requirements.
$0.85 per device per month
Free Trial
Free version unavailable
Small
Medium
Large
- Information technology and software
- Public sector and nonprofit organizations
- Construction
What is Microsoft Defender for IoT
Microsoft Defender for IoT is a security product for discovering, monitoring, and helping protect IoT and industrial/OT devices and networks. It is used by security and OT teams to gain asset visibility, detect suspicious activity, and support incident response across environments such as manufacturing, energy, and critical infrastructure. The product emphasizes agentless network-based monitoring for OT and integrates with Microsoft security tooling for alerting and workflow. It also supports cloud-connected IoT security scenarios through integration with Azure services.
Agentless OT asset discovery
The product supports passive, agentless discovery of OT/IoT devices by analyzing network traffic, which is practical for environments where installing agents is not feasible. This approach helps teams inventory devices and identify unmanaged assets without disrupting operations. It is well-suited to segmented industrial networks where change control is strict. It also helps reduce reliance on endpoint deployment across heterogeneous device types.
Microsoft security ecosystem integration
Defender for IoT integrates with Microsoft’s broader security stack, enabling centralized alerting and investigation workflows for organizations already using Microsoft security tools. This can simplify SOC operations by correlating OT detections with IT identity, endpoint, and cloud signals. It supports role-based access and operational processes aligned with enterprise security governance. For Microsoft-centric environments, this reduces the need to build custom integrations for basic workflows.
OT-focused detections and context
The product provides detections and contextual information tailored to industrial environments, such as device roles, communications patterns, and protocol-aware insights. This helps security teams triage alerts with operational context rather than relying only on generic network indicators. It supports use cases like identifying unusual controller communications or policy violations in OT segments. The focus on OT context differentiates it from general-purpose system security tools.
Best fit for Microsoft stacks
Organizations not standardized on Microsoft security tooling may realize less value from the product’s strongest integrations. Achieving comparable workflows can require additional integration work with third-party SIEM/SOAR and ticketing systems. This can increase deployment complexity and ongoing operational overhead. The product is often most straightforward when paired with Microsoft identity and security management services.
Coverage depends on visibility points
Agentless monitoring effectiveness depends on where sensors are placed and whether network traffic is observable (for example, SPAN/TAP availability and segmentation design). Encrypted traffic, limited mirroring, or highly segmented architectures can reduce detection fidelity. Some environments may require additional network engineering to provide adequate telemetry. As a result, time-to-value can vary by site network design.
OT remediation may remain manual
While the product can detect and surface risks, remediation in OT environments often requires coordinated operational change management and may not be fully automated. Actions such as patching, configuration changes, or device replacement can be constrained by uptime and safety requirements. Teams may need complementary processes and tools for vulnerability remediation and asset lifecycle management. This can limit how quickly identified issues are resolved in practice.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Included with Microsoft 365 E5 (Enterprise IoT) | Included (with Microsoft 365 E5 user license) | Protects up to 5 eIoT devices per Microsoft 365 E5 user license. |
| Microsoft Defender for IoT - EIoT Device License (add-on) | $0.85 per device/month (paid yearly) | Add-on to Microsoft Defender for Endpoint P2; licensed per eIoT device; annual commitment. |
| Microsoft Defender for IoT - OT site license - XS | $70.00 per license/month (paid yearly) | Site license (annual commitment); includes up to 100 OT devices per site; auto-renews yearly. |
| Microsoft Defender for IoT - OT site license - S | $150.00 per license/month (paid yearly) | Site license (annual commitment); includes up to 250 OT devices per site; auto-renews yearly. |
| Microsoft Defender for IoT - OT site license - M | $250.00 per license/month (paid yearly) | Site license (annual commitment); includes up to 500 OT devices per site; auto-renews yearly. |
| Microsoft Defender for IoT - OT site license - L | $400.00 per license/month (paid yearly) | Site license (annual commitment); includes up to 1,000 OT devices per site; auto-renews yearly. |
| Microsoft Defender for IoT - OT site license - XL | $1,500.00 per license/month (paid yearly) | Site license (annual commitment); includes up to 5,000 OT devices per site; contact Sales for >5,000 devices. |
Seller details
Microsoft Corporation
Redmond, Washington, United States
1975
Public
https://www.microsoft.com/
https://x.com/Microsoft
https://www.linkedin.com/company/microsoft/
