Key Takeaways
- Stellar Discover is a lightweight, user‑space endpoint sensor that provides asset visibility and vulnerability assessment in OT environments without requiring kernel access or system reboots.
- It fills the visibility gap left by network‑only tools by reporting installed software, version levels, device‑level vulnerabilities, USB activity, login failures, and active malware presence.
- Designed for “detection‑only” use, Stellar Discover never blocks, quarantines, or modifies endpoint data, preserving operational continuity.
- The sensor installs in roughly one minute per endpoint, works on legacy Windows systems (Windows 2000 through Windows 11), and co‑exists with existing IT endpoint protection tools because it avoids driver‑level conflicts.
- Findings are delivered through TXOne’s management console via scheduled assessment reports that include asset health, vulnerability severity (using TXOne’s VSAR scoring), and actionable recommendations.
- Stellar Discover complements TXOne’s broader OT security portfolio—network‑based SenninRecon assessment and TXOne Edge visibility—forming a staged approach: discover → assess → protect.
- General availability is slated for May 2026, with a preview release currently accessible through TXOne Networks and its channel partners.
Introduction to Stellar Discover
TXOne Networks, positioning itself as an operations‑first OT security partner, has unveiled a preview of Stellar Discover, a lightweight endpoint sensor aimed at delivering reliable asset visibility and vulnerability assessment in operational technology (OT) settings where conventional security agents have struggled to deploy. The solution is engineered to fortify the earliest phase of TXOne’s OT security methodology, enabling organizations to progress from mere asset discovery to informed risk assessment before contemplating active protection measures. By complementing existing offerings such as SenninRecon’s network‑based assessment and TXOne Edge’s network‑level visibility, Stellar Discover helps build a comprehensive, layered understanding of an OT environment’s security posture.
Addressing the Visibility Gap
A core motivation behind Stellar Discover is the persistent lack of trustworthy endpoint‑level insight in many OT infrastructures. Network‑based visibility platforms excel at detecting devices through traffic pattern analysis, yet they remain blind to what actually executes on those devices—such as exact software versions, patch levels, lurking vulnerabilities, or resident malware. Stellar Discover was created specifically to bridge this detection‑only gap, giving security teams the ability to see inside the endpoint without assuming the operational risks associated with active intervention tools.
Architecture Designed for Safety
Unlike many endpoint agents that demand kernel‑level drivers or elevated privileges, Stellar Discover operates entirely in user space. This deliberate architectural choice eliminates the potential for interfering with system stability, a critical concern in OT environments where uptime and deterministic performance are paramount. Because it requires no kernel access, no driver installation, and no special system privileges, the sensor cannot inadvertently cause crashes, hangs, or unintended side effects on the machines it monitors.
Effortless Deployment and Removal
Deploying Stellar Discover is remarkably straightforward: installation consumes approximately one minute per endpoint, necessitates neither a reboot nor any manual configuration, and can be performed on live systems without interrupting ongoing processes. Equally important, removal is just as swift and non‑disruptive, allowing security teams to add or withdraw the sensor as needed without incurring downtime. This low‑friction approach addresses a common barrier in OT—reluctance to install software that might affect production continuity.
Comprehensive Endpoint Insight
Once active, Stellar Discover gathers a rich set of data points that together paint a detailed picture of endpoint health. It enumerates devices and installed software, identifies vulnerable components using TXOne’s proprietary VSAR scoring methodology, monitors USB device activity, tracks login failures, and reports any active malware presence. Importantly, the sensor is strictly observational; it does not block, quarantine, alter, or remediate anything on the endpoint. All findings are aggregated into scheduled assessment reports delivered through TXOne’s centralized management console, providing asset health summaries, vulnerability severity rankings, and actionable recommendations for remediation or further investigation.
Compatibility with Existing IT Security Tools
One of the notable advantages of Stellar Discover’s user‑space design is its ability to coexist peacefully with existing IT endpoint detection and response (EDR) or antivirus solutions. Traditional OT endpoint agents often clash with corporate IT security software at the driver level, leading to instability or outright incompatibility. By avoiding kernel drivers altogether, Stellar Discover sidesteps these conflicts, enabling organizations to layer OT‑specific visibility atop their current IT security stack without sacrificing either system reliability or security coverage.
Broad OS Support Including Legacy Systems
Stellar Discover’s compatibility matrix spans a wide range of Windows operating systems, from the antiquated Windows 2000 through the contemporary Windows 11. This inclusivity is especially valuable for OT environments that retain legacy equipment—such as older HMIs, PLCs, or SCADA workstations—that modern IT EDR tools cannot support. By extending visibility to these otherwise “invisible” endpoints, Stellar Discover helps organizations achieve a holistic inventory across both modern and heritage assets.
Strategic Role in TXOne’s OT Security Framework
Within TXOne’s broader OT security strategy, Stellar Discover occupies the foundational stage of asset discovery and vulnerability assessment. It works in concert with SenninRecon, which delivers network‑based asset profiling and risk scoring, and TXOne Edge, which provides continuous network‑level visibility and anomaly detection. Together, these three components create a staged workflow: first, discover what exists; second, assess the risks associated with those assets; third, decide whether and how to apply active protection controls. This progression reduces the likelihood of prematurely deploying invasive security measures that could disrupt operations.
Leadership Perspective and Market Availability
Terence Liu, CEO of TXOne Networks, emphasized that many OT operators grapple with endpoints they cannot see, patch, or protect today. He positioned Stellar Discover as the essential first step—offering reliable visibility without demanding any operational risk in return. The sensor is currently available in preview mode through TXOne Networks and its authorized channel partners, with general availability anticipated for May 2026. This timeline gives interested organizations ample opportunity to evaluate the technology in their own environments before committing to a broader rollout.