Full Report
Stop managing risk in silos. VM-Native OT Discovery, now available in Tenable Vulnerability Management and Tenable Security Center provides unified visibility across IT and OT domains. See every asset and manage your total cyber exposure in a unified view.Key takeawaysThe air gap is dead. IT security teams are inheriting responsibility for operational technology (OT), but often lack visibility into these systems. Security teams face significant barriers with OT security. Fear of disrupting fragile devices and the high cost of specialized hardware have created a dangerous "black box" in the attack surface. The perfect “on-ramp” to OT security. A new OT Discovery engine embedded in Tenable Vulnerability Management and Tenable Security Center allows security teams to safely profile OT, IoT, and shadow IT assets using the tools they already own.For decades, the concept of the "air gap" — a physical isolation between IT networks and critical operational technology (OT) — provided security leaders with a sense of comfort. The assumption was simple. Digital threats stay on the corporate network, while physical operations run safely in isolation.In today's hyper-connected world, that assumption is often wrong and leaves your OT environment exposed to preventable cyber risk.From modern data centers and smart hospitals to commercial real estate and universities, the line between the digital and the physical has blurred. IT security teams are increasingly inheriting responsibility for securing cyber-physical systems (CPS) — the HVAC controllers keeping servers cool, the badge readers securing facility entrances, and the power distribution units keeping the lights on.Yet, for many organizations, these OT assets are a massive blind spot.The "black box" problemWhile vulnerability management programs have matured rapidly for IT assets, covering everything from cloud workloads to laptops, operational environments are often a "black box."This visibility gap usually stems from two distinct barriers:There is a pervasive (and historically valid) fear that scanning OT/IoT assets with traditional IT security tools could knock fragile devices offline, disrupting critical business operations. Traditional OT security tools often require a massive undertaking. The complexity and cost of deploying expensive specialized hardware, managing long-term evaluations, architecting complex mirror ports, and navigating the political minefield of installing new appliances in sensitive production environments make these projects difficult to justify.The result is a dangerous paradox. Security teams are responsible for the risk of interconnected systems, but don’t have the tools to see or secure them. Attackers, however, face no such barriers, frequently pivoting from compromised IT networks to poorly defended OT assets to maximize impact.Rethinking converged OT/IT securityTo secure the modern attack surface, organizations must stop managing IT and OT risk in silos. Security leaders need a unified view that treats a vulnerability on a programmable logic controller (PLC) with the same rigor and context as a vulnerability on a Windows server.Achieving this requires a fundamental shift in how we approach asset discovery. Security teams need streamlined methods that provide the necessary depth of OT visibility for compliance and risk reduction, without the friction of deploying hardware across physical sites. They need a way to safely seeshadow OT assets using the infrastructure already in place. Image: A segment of Tenable’s research and testing lab for operational technology (OT).Introducing VM-Native OT DiscoveryOur latest release fundamentally changes the economics and accessibility of OT security tools. We are excited to announce OT Discovery, a new capability embedded directly inside the Tenable One Exposure Management Platform that provides security teams with foundational visibility into OT and IoT environments. It’s the perfect on-ramp to OT security, so you can uncover hidden OT risks and deep asset-level details. Here is how it changes the game for your security program:Safe visibility for cyber-physical systems. OT Discovery uses the same Active Query engine found in our specialized Tenable OT Security solution—now natively integrated into Tenable Vulnerability Management and Tenable One. It performs "smart," protocol-aware handshakes to verify assets before querying them so you can safely profile PLCs, human-machine interfaces (HMIs), IoT devices, and shadow IT assets across your environment. Unified OT/IT exposure management. By integrating OT asset data, including vendor, model, and firmware details, directly into your existing dashboards, you can break down silos and view your organization's total risk exposure in a single pane of glass. Extend the value of your security investments. No need to rip and replace or install new hardware. This capability enables you to extend the value of your existing vulnerability management toolsets to uncover the OT risk hiding on your network.Breaking down silos across IT and OTAdopting a unified approach to OT/IT exposure management builds trust.Historically, the relationship between IT security and facility operations teams has been strained. IT wants to scan and patch known vulnerabilities. Operations teams require uptime and stability. When IT security teams try to enter the OT space with aggressive scans or unfamiliar hardware, friction is inevitable.VM-Native OT Discovery changes the conversation. Because Tenable relies on trusted, safe query methods through familiar infrastructure, the security team can approach the ops team with reliable data and real-time exposure intelligence.Instead of asking, "Can we install a black box on your network?" you can say, "We noticed three unmanaged PLCs communicating on the subnet. Here is exactly what they are. Let’s work together to secure them now rather than waiting 6-12 months to patch during the next maintenance interval."Get started with OT security todayOT security is no longer just for industrial giants and organizations managing critical national infrastructure. Every manufacturer, warehouse operator, and organizations smart building management systems face operational risk.Ready to get visibility into your OT blind spots? You don't need a massive budget or a year-long deployment project to get started. Watch this quick demo to see how you can secure your most critical assets with the vulnerability management tools you already use. Are you an existing Tenable customer? Explore the user guide documentation for Scan Templates and Discovery Settings to get started.Learn moreDive deeper into the challenges and solutions for securing OT with our eBook, “Blackbox to blueprint: A security leader’s guide to managing OT and IT risk.”Explore our complete Tenable One exposure management platform, offering scalable security solutions for the entire attack surface.Request a demo to find out how Tenable exposure management solutions fit into your cybersecurity roadmap.
Analysis Summary
# Industry News: Tenable Bridges IT/OT Gap with VM-Native Discovery
## Summary
Tenable has announced the launch of **VM-Native OT Discovery**, a new capability integrated directly into Tenable Vulnerability Management and Tenable Security Center. This update allows security teams to identify and profile Operational Technology (OT) and IoT assets using their existing IT vulnerability management infrastructure, eliminating the need for specialized hardware for initial visibility.
## Key Details
- **Date:** Recently announced (Q3/Q4 2024 timeframe)
- **Companies Involved:** Tenable
- **Category:** Product Launch / Feature Update
## The Story
For years, the "air gap"—the physical isolation of industrial systems from corporate networks—has been the primary defense for Operational Technology. However, the rise of smart buildings, connected manufacturing, and remote telemetry has effectively ended this isolation. IT security teams are now inheriting responsibility for "Cyber-Physical Systems" (CPS) but often lack visibility because traditional IT scanners can crash sensitive OT devices like Programmable Logic Controllers (PLCs).
Tenable’s VM-Native OT Discovery addresses this "black box" problem by embedding its specialized OT active querying engine into its flagship IT products (Tenable One, Tenable Vulnerability Management, and Tenable Security Center). This allows IT teams to safely "handshake" with OT devices using the same tools they use for laptops and servers, identifying vendor, model, and firmware details without the traditional friction of deploying expensive onsite hardware appliances.
## Business Impact
### For the Companies Involved
- **Tenable:** Lowers the barrier to entry for their OT security business. By providing "foundational visibility" in their core IT products, Tenable creates a natural upsell path to their full Tenable OT Security suite.
### For Competitors
- **Competitive Landscape Impact:** This move puts pressure on specialized OT security vendors (like Nozomi Networks or Dragos) by providing "good enough" OT discovery features for free or as part of existing IT contracts. It also challenges IT-focused competitors who lack native, safe OT querying capabilities.
### For Customers
- **Impact on End Users:** Dramatically reduces the Total Cost of Ownership (TCO) for initial OT discovery. Security leaders can now gain an inventory of their "shadow OT" (HVAC, badge readers, UPS units) without negotiating complex hardware installs with operations teams.
### For the Market
- **Broader Market Implications:** Signals a shift toward **Converged Exposure Management**. The market is moving away from managing IT and OT in silos and toward a "single pane of glass" where a vulnerability on a factory floor is treated with the same business context as a cloud misconfiguration.
## Technical Implications
The core innovation is the migration of the **Active Query engine** from Tenable OT Security into the standard VM sensors. This engine is "protocol-aware," meaning it communicates with industrial devices in their native tongues (e.g., Modbus, BACnet) rather than performing the aggressive port-scanning characteristic of IT tools that can lead to device downtime.
## Strategic Analysis
- **Market Positioning:** Tenable is positioning itself as the "on-ramp" to OT security for the mid-market and enterprises that aren't "Industrial Giants" but still own smart infrastructure.
- **Competitive Advantage:** Leverages Tenable’s massive installed base in IT vulnerability management to capture OT territory before specialized competitors can get a foot in the door.
- **Challenges:** The "safe" discovery is foundational; it may not provide the deep, passive packet inspection required for high-stakes critical infrastructure, potentially leaving a gap for specialized high-end competitors.
## Industry Reactions
- **Analyst Opinions:** Analysts generally view this as a necessary step in the evolution of Exposure Management, noting that visibility is the #1 hurdle for CPS security.
- **Market Response:** The move reflects a broader trend of IT-OT convergence, where the CISO is becoming the central figure for all "connected" risk.
## Future Outlook
- **Predictions:** Expect Tenable to further integrate OT-specific risk scoring into its "Exposure Score," allowing executives to see how a vulnerability in a building's cooling system impacts the overall business risk.
- **What to watch for:** Whether competitors like Qualys or Rapid7 respond with similar native OT capabilities or opt for partnerships with industrial specialists.
## For Security Professionals
Cybersecurity practitioners can now leverage their existing Tenable infrastructure to hunt for "Shadow OT" and IoT. This provides a lower-risk way to start a dialogue with Operations (Ops) teams by coming to the table with data rather than requests for intrusive hardware deployments. It is a strategic tool for closing the visibility gap in modern office buildings, data centers, and manufacturing warehouses.