Dragos Acquires Phosphorus to Bring OT-Native Cybersecurity
Jun 2, 2026 | By Startuprise io

Dragos, a cybersecurity company specializing in operational technology (OT) environments, has acquired Phosphorus Cybersecurity, a provider of automated device discovery and security solutions for connected devices used across critical infrastructure.
The acquisition will help Dragos expand its ability to secure connected devices across the entire extended operational technology (xOT) environment. Customers will gain improved visibility into assets, and device intelligence, with automated remediation tools, and a more unified security platform planned for future releases.
Phosphorus Cybersecurity customers will continue to receive full support while gaining access to additional Dragos solutions as the integration moves forward. Sonu Shankar will remain in charge of the Phosphorus business as General Manager within Dragos during the phased integration process.
Phosphorus Cybersecurity provides a platform that helps organizations discover, monitor, and secure connected devices across both operational technology (OT), and enterprise networks. The platform works with existing systems, giving organizations detailed visibility into their devices, and helping them identify risks without major infrastructure changes.
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It also automates important security tasks such as password updates, firmware upgrades, certificate management and device configuration improvements. This helps organization's strengthen security, meet compliance requirement's and reduce risk more efficiently across large device environments.
Customers of Dragos will gain greater visibility into connected assets and improved device intelligence, with automated remediation capabilities and a more integrated platform experience planned for the future.
Customers of Phosphorus Cybersecurity will continue to receive full support while gaining access to additional Dragos solutions as the integration progresses. Sonu Shankar will continue leading the Phosphorus business as General Manager within Dragos during the phased integration process.
“The connected devices you find everywhere in critical infrastructure are largely invisible to the cybersecurity programs that protect operational environments,” said Robert M. Lee, CEO and Co-Founder of Dragos. “With Phosphorus, we close that gap and secure xOT, the full environment that matters.”
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“We built Phosphorus to solve the connected device problem — the unmanaged devices, the default credentials, the firmware no one was updating. Together with Dragos, we can solve it with a depth and scale that wasn't possible before. That's what the next generation of OT cybersecurity looks like,” said Sonu Shankar, President and COO of Phosphorus.
About Dragos
Founded in 2016 by Robert M. Lee, Dragos is a cybersecurity company focused on protecting operational technology (OT) and extended OT (xOT) environments. Its platform provides asset visibility, continuous monitoring, vulnerability management, network segmentation validation, device security and real time threat detection, supported by a team of experienced OT threat intelligence and incident response specialists.
About Phosphorus Cybersecurity
Founded in 2017, Phosphorus Cybersecurity, now a Dragos company, provides a security and management platform for connected devices across IoT, OT, and medical technology environments. Its technology helps organizations discover, assess, secure and manage devices across their networks by offering device visibility, risk assessment, automated remediation and continuous monitoring to reduce cybersecurity risks across a wide range of industries.
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