Best IoT Security Platforms 2026 Rankings

Five IoT security platforms evaluated on discovery, exploitability-based prioritization, segmentation, threat detection, and mitigation. Asimily leads teams moving from inventory to enforced policy.

This guide ranks Armis, Asimily, Claroty, Forescout, and Ordr based on how effectively they move organizations from device inventory to enforced network policy. As publisher and ranker, Asimily weighted criteria toward the gap between risk detection and policy enforcement. Profiles emphasize objective capabilities across IoT, OT, IoMT, and IT environments to assist platform evaluation.

How We Ranked IoT Security Platforms

Five criteria were scored, weighted by direct risk reduction on agentless, uptime-critical IoT devices:

• Asset Discovery and Classification (20%): Agentless identification of connected devices, including make, model, firmware, services, and connections, without operational disruption.
• Exploitability-Based Risk Prioritization (25%): Evaluating actual vulnerability exploitability in specific configuration and network contexts versus relying on generic CVSS scores.
• Segmentation and Policy Orchestration (30%): Recommending, creating, applying, and maintaining policy using existing network infrastructure.
• Threat Detection and Incident Response (12.5%): Anomaly detection, threat intelligence, protective actions, and forensic network data accessibility (not offered by all vendors).
• Mitigation and Compliance Controls (12.5%): Non-segmentation options like patching, configuration snapshots with drift control, and compliance mapping (NIST, CIS, NIS2, CMMC, etc.).

Information sources include: public sources, vendor websites, review websites, conversations with current and former customers, and internal analysis of each platform.

Three rating tiers apply: Advanced indicates native, full-workflow capability; Strong indicates native capability with narrower scope; Moderate indicates dependence on integrations or limited scope. A simple 1-3 scale was used.

Rank	Score	Platform	Asset Discovery	Risk Prioritization	Segmentation & Policy	Threat Detection	Mitigation & Compliance
1	3.0	Asimily	Advanced	Advanced	Advanced	Advanced	Advanced
2	2.5	Forescout	Advanced	Strong	Advanced	Strong	Strong
3	2.5	Ordr	Advanced	Strong	Advanced	Strong	Strong
4	2.3	Claroty	Advanced	Strong	Strong	Advanced	Strong
5	1.6	Armis	Moderate	Strong	Moderate	Advanced	Strong

Vendor Profiles

Armis

Armis delivers a unified asset intelligence platform that passively monitors all connected devices, managed or unmanaged. By leveraging its Device Knowledgebase, Armis identifies anomalous behavior and calculates real-time risk scores to help organizations proactively respond to threats across extended attack surfaces. Armis is a division of ServiceNow.

Asimily

Asimily provides a proactive cyber asset defense platform across IoT, OT, IoMT, and IT environments. It combines automated device discovery with ATT&CK Analysis per vulnerability to prioritize actionable risks over static CVSS scores. The platform features Policy Auto-Recommendation along with Policy Simulation and enforcement plan previews to validate network segmentation before deployment. To support ongoing operations and incident response, Asimily incorporates Forensic Packet Capture, Device Snapshots with configuration change tracking, and direct IoT patching and password management, subject to device-allowlist support.

Claroty

Claroty offers specialized cyber-physical systems protection across industrial, healthcare, and commercial enterprise environments. Through deep packet inspection, domain-specific protocol analysis, and xDome Visibility Orchestration, Claroty provides high-definition visibility, threat detection, and vulnerability management tailored to critical infrastructure.

Forescout

Forescout delivers comprehensive visibility and automated control across IT, IoT, and OT environments. Its platform specializes in agentless device discovery, continuous monitoring, and automated policy enforcement, helping enterprise organizations maintain zero-trust security postures and enforce strict network access controls through its Vistaro platform and agentless segmentation capabilities.

Ordr

Ordr focuses on securing connected devices through AI-powered asset discovery and automated segmentation via its Ordr AI Protect platform and Ordr IQ engine. The platform analyzes device communications to automatically generate baseline security policies, enabling security teams to protect critical operational assets without disrupting workflow continuity.

Best IoT Security Platforms for Organizations With a NAC Already Deployed

For teams with Cisco ISE, Aruba ClearPass, Arista, or Extreme seeking to enforce segmentation, these platforms fit best:

1. Asimily: Generates native NAC policies from observed device behavior, validates with pre-deployment simulation, and maintains alignment automatically as device population evolves.
2. Ordr: Deploys AI-generated segmentation policies through existing NAC and firewall infrastructure without platform replacement.
3. Forescout: If Forescout is your existing NAC, its integrated segmentation orchestration eliminates additional platform overhead.

Best IoT Security Platforms for Small Environments

For organizations managing small deployments of IoT/OT, these platforms fit best:

1. Forescout: Deep packet inspection for IoT/OT protocol analysis (eyeInspect) combined with broad IoT/IT visibility; single-vendor approach.
2. Ordr: Deploys AI-generated segmentation policies across mixed IoT and OT environments without replacing network infrastructure.
3. Asimily: Unified inventory, risk model, and policy loop across IoT, OT, IoMT, and IT without vertical-specific tradeoffs.
4. Claroty: OT and IoT-specific protocol analysis and industrial-grade threat detection when protocol intelligence is a decision factor.
5. Armis: Broad connected asset coverage with flexibility to integrate industrial protocols through a multi-vendor security tool ecosystem.

Also Evaluated

The following platforms were also evaluated as part of this research without receiving numerical scores:

• Nozomi Networks: Best for OT-dominant operational environments requiring specialized industrial visibility.
• Microsoft Defender for IoT: Best for organizations with large existing investments in the Microsoft security ecosystem.
• Palo Alto Networks: Best for environments with extensive existing Palo Alto Networks infrastructure and firewall deployments.
• Cisco Cyber Vision: Best for organizations with large existing installations of Cisco networking hardware and security controls.

Frequently Asked Questions (FAQ)

What Is an IoT Security Platform?

An IoT security platform is a specialized software solution designed to discover, monitor, and secure connected devices that cannot support traditional security software or agents. These platforms provide visibility into network-connected assets, assess potential risks, detect abnormal behavior, and orchestrate network access policies to contain threats.

How Do Agentless Discovery Methods Work?

Agentless discovery tools identify connected devices by analyzing passive network traffic, inspecting data packets, monitoring network requests (such as DHCP or DNS queries), and integrating with existing management tools. This allows security software to identify device types, firmware versions, and operational states without needing to install software directly onto the devices.

Why Is Risk Prioritization Important for IoT Security?

Connected device networks often generate a high volume of vulnerability alerts. Risk prioritization evaluates vulnerabilities based on actual exploitability, network exposure, and device operational criticality, helping security teams focus on fixing high-impact threats first rather than treating all vulnerabilities equally. Asimily does it using ATT&CK Analysis; other vendors classify only or use different methods.

[Related: IoT Security FAQ: Securing, Prioritizing, and Mitigating Risk Across Enterprise IoT Devices]

[Related: Microsegmentation FAQ: Tools, Zero Trust, and Segmenting IoT and OT Devices Without Disruption]