xIoT Security FAQs

Phosphorus is an xIoT security and management platform that discovers, assesses, and actively remediates risk across connected devices, including IoT, OT, IoMT, and IIoT. It enables organizations to move beyond visibility by automating actions such as password rotation, firmware updates, certificate management, and configuration hardening at scale.

Phosphorus operates on a subscription-based model
• Annual subscription
• Pricing based on number of devices managed and features employed

What’s available
• Continuous discovery and inventory
• Risk assessment and enrichment
• Automated remediation capabilities
• Ongoing device support and updates

👉 The platform continuously evolves to support new device types as part of the subscription.

From day one, the vision has been to help organizations remediate vulnerabilities across their xIoT environments automatically, safely, and at scale.

👉 Deliver visibility, control, and automation—but for devices that traditional tools can’t manage.

You can’t secure what you can’t see—and you can’t fix what you can’t control.

Phosphorus was built to go beyond visibility and deliver:
• Deterministic discovery (not inferred)
• Deep device understanding
• Automated remediation at scale

Phosphorus was founded in 2017 by Chris Rouland with a simple realization: the world was about to be flooded with connected devices—and no one was securing them properly.

After his third successful exit, Chris made an unsuccessful attempt to retire. He came across a University of Wisconsin research paper analyzing a large-scale IoT-based DDoS attack. Instead of just stopping the attack, the researchers studied it—and uncovered something surprising:

👉 The average “half-life” for firmware updates on IoT devices was seven years.

That meant most connected devices were running vulnerable software for years—long after exploits were known.

As Phosphorus engaged with early customers, a consistent pattern emerged:
• Organizations lacked accurate device inventory
• Default credentials were widespread
• Firmware, certificates, and configurations were largely unmanaged

In other words, before advanced security controls, most organizations were missing the fundamentals.

Visit phosphorus.io to:
• Request a demo
• See the platform in action
• Speak directly with an expert

Across these sectors, organizations face the same core challenge:
👉 Traditional security tools cannot see or fix risks in xIoT environments

Phosphorus solves this by delivering:
• Accurate, real-time device inventory
• Automated remediation at scale
• Continuous monitoring of operational environments

Phosphorus is best suited for organizations that:
• Operate 10,000+ employees or large distributed environments
• Have thousands to hundreds of thousands of connected devices
• Require high-fidelity asset visibility and automated remediation
• Operate in regulated or mission-critical environments

Primary Industries:

Data Centers & Colocation
• Secure infrastructure devices such as PDUs, HVAC systems, environmental sensors, and access controls.

Manufacturing & Industrial (OT/ICS)
• Protect PLCs, PDUs, UPSs, cooling systems, and more without disrupting operations.

Healthcare (IoMT)
• Secure medical devices such as infusion pumps and patient monitoring equipment.

Financial Services
• Manage risk across distributed branch infrastructure and connected devices.

Hospitality & Retail
• Secure POS systems, smart building infrastructure, and guest-facing devices.

Critical Infrastructure & Energy
• Protect operational environments where uptime, safety, and compliance are paramount.

Federal & Public Sector
• Support compliance with directives such as CISA BOD 26-02 and federal security requirements.

Customers typically achieve:
• Complete and accurate xIoT asset inventory
• Rapid reduction of exploitable risk
• Automated security operations at scale
• Improved compliance posture
• Reduced time from discovery → remediation

Phosphorus is designed for enterprise environments:
• Tens of thousands to hundreds of thousands of devices
• Distributed environments across regions and business units
• Highly segmented networks

Phosphorus eliminates manual work by:
• Automating remediation tasks
• Centralizing device management
• Reducing reliance on multiple tools
• Enabling security and operations teams to scale

👉 Result: Less manual effort, faster risk reduction, and improved security posture without increasing FTE count.

Yes.

Phosphorus is designed specifically for cyber-physical systems (CPS) environments:

• Uses native device protocols instead of aggressive scanning
• Dynamically adjusts probe behavior via IAD
• Minimizes network impact and device disruption

👉 The platform’s discovery engine automatically calibrates scanning behavior to ensure safety across industries like healthcare, manufacturing, and critical infrastructure.

No major changes are required.

Requirements:
Outbound HTTPS (TCP 443)
Access to device communication ports for discovery
Optional siteManager for segmented networks

Phosphorus avoids:
Network re-architecture
Traffic mirroring (SPAN/TAP)
Inline deployments

Initial deployment: Hours
First discovery results: Minutes
Full environment visibility: Typically same day

Phosphorus delivers immediate time-to-value compared to legacy tools that take months or years to implement.

Phosphorus is designed for fast, flexible deployment:

Deployment Options
On-premises (virtual appliance)
Cloud (AWS, Azure, GCP)
Hybrid environments

Key Deployment Characteristics
No agents required
No SPAN ports or TAPs required
No hardware dependencies
Works in segmented and air-gapped networks

Architecture Overview
Can run on a single appliance
Optional zoneWorker enables:
Distributed scanning
Support for segmented networks (DMZ, airgap)
Reduced network complexity

Phosphorus is designed to integrate seamlessly into your existing security and IT ecosystem, extending the value of your current tools by adding high-fidelity xIoT visibility and automated remediation.

Rather than replacing existing investments, Phosphorus enriches, operationalizes, and automates them.

Identity & Privileged Access Management (PAM)

Integration Partners:
CyberArk, HashiCorp Vault, and other leading enterprise PAM platforms

Phosphorus integrates with all major Privileged Access Management (PAM) solutions to extend identity security into xIoT environments:
Automatically discovers devices and associated credentials

Syncs credentials into enterprise vaults (e.g., CyberArk, HashiCorp Vault)
Enables bi-directional credential rotation across devices and vaults
Supports Just-in-Time (JIT) access and Zero Trust models for machine identities
Automates credential lifecycle management across IoT, OT, IoMT, and IIoT devices

👉 Phosphorus acts as the execution layer for PAM in xIoT, enabling credential enforcement, rotation, and validation directly on devices—something traditional PAM tools cannot do alone.
👉 Example: With CyberArk, Phosphorus enables centralized credential governance, Zero Standing Privilege (ZSP), and automated rotation across thousands of devices.

Vulnerability Management

Integration Partners:
Qualys, Armis

Phosphorus enhances vulnerability management platforms by providing deep device-level context and remediation capabilities:
Enriches vulnerability findings with real device intelligence

Correlates vulnerabilities with firmware, configuration, and credential state
Enables automated remediation directly from vulnerability insights

👉 Phosphorus closes the gap between identification and action, where traditional tools stop.

Asset Inventory & Cyber Asset Management

Integration Partners:
Axonius, Sevco

Phosphorus integrates with asset management platforms to provide a complete, unified asset inventory across IT and xIoT:
Feeds high-fidelity device data into asset platforms

Identifies unknown and unmanaged devices

Continuously updates asset records with real-time device posture

Enables cross-domain correlation (IT + OT + IoT)

👉 This ensures asset systems are no longer dependent on incomplete or inferred data.

CMDB & IT Service Management (ITSM)

Integration Partners:
ServiceNow

Phosphorus integrates with ITSM platforms to operationalize xIoT security within existing workflows:
Automatically populates and updates the CMDB with xIoT assets

Syncs vulnerabilities into ServiceNow Vulnerability Response (VR)

Triggers tickets and workflows for remediation

Enables closed-loop remediation tracking

👉 This bridges security and operations teams with real-time device intelligence.

SIEM & Security Operations

Integration Partners:
Microsoft Sentinel, Splunk, Cribl

Phosphorus integrates with SIEM platforms to provide centralized visibility and detection for xIoT risk:
Streams telemetry, alerts, and device context into the SIEM

Enables correlation with broader security events
Supports automated incident response playbooks
Enhances SOC visibility with xIoT-specific intelligence

👉 This allows SOC teams to treat xIoT risks as part of standard security operations.

Network Security & Enforcement

Integration Partners:
Check Point, Forescout

Phosphorus integrates with network security platforms to combine visibility with enforcement:
– Enriches network tools with accurate device intelligence
– Enables policy enforcement based on real device posture
– Supports segmentation and containment workflows
– Complements passive monitoring with active validation and remediation

👉 Phosphorus adds the missing layer: the ability to fix issues, not just detect them.

Physical Security & IoT Ecosystem

Integration Partners:
Milestone Systems (XProtect)

Phosphorus integrates with physical security platforms to provide:
Visibility into connected physical security devices (e.g., cameras, access systems)

Device-level risk assessment for physical security infrastructure

Integration of physical systems into broader cybersecurity workflows

Cloud, API & Extensibility

Integration Partners:
AWS, Microsoft Azure, Google Cloud Platform (GCP)

Phosphorus supports modern, API-driven environments:
Full REST API access for automation and orchestration

Integration into cloud-native workflows and pipelines

Support for custom integrations and extensibility

Enables dynamic scanning and automated security actions

How Phosphorus Fits Into Your Stack

Across all integrations, Phosphorus serves as:
System of record for xIoT devices (accurate, real-time data)

Enrichment layer for existing tools
Execution engine for automated remediation

👉 In practice:
Your existing tools detect and prioritize risk
Phosphorus validates, enriches, and fixes it at scale

Who are your main “competitors”?
Claroty
Armis
Nozomi Networks
Forescout

Do you replace them?
Not necessarily—we complement them.

How Phosphorus works with competitors
Most competitors rely on passive network monitoring, which:

Is highly effective at detecting anomalous or malicious behavior, BUT
Misses devices not generating traffic thru network hardware (e.g. ‘east-west’ device to device traffic)
Lacks high fidelity device data; relies heavily on MAC addresses or OUI lookups
Cannot validate configurations or credentials
Cannot remediate issues

Phosphorus complements these platforms by:

Validating and enriching asset inventory with real device interrogation
Identifying risks passive tools cannot detect (e.g., default passwords, certificates)
Executing automated remediation actions

👉 In many environments:

Passive tools = network monitoring layer
Phosphorus = inventory + comprehensive risk assessment + action + remediation layer

Phosphorus delivers full lifecycle xIoT security across three core pillars:
1. Discover & Assess
High-fidelity device inventory (15+ attributes per device)

Identification of:
• Default credentials
• Vulnerabilities (CVEs with KEV + EPSS context)
• End-of-life devices
• Misconfigurations
• Certificate risks
• Safe discovery using native protocols (no reckless scanning)

2. Harden & Remediate
• Automated password rotation at scale
• Firmware upgrades/downgrades
• Certificate lifecycle management
• Configuration hardening (disable services, enforce encryption)
• Compliance enforcement (e.g., NDAA banned devices)

3. Monitor & Manage
• Continuous device monitoring for drift
• Log collection and analysis
• Backup & restore for ransomware resilience (In Development)
• Device-level security analytics

👉 The key differentiator: Phosphorus doesn’t just find issues—it empowers you to fix them at scale.

Phosphorus can discover and classify devices in minutes, not months, and does not require agents, hardware, or network changes. Organizations gain immediate visibility and can begin remediation almost immediately after deployment.

No. Phosphorus is agentless and does not require SPAN ports, taps, or additional hardware. It can be deployed on-premises, in the cloud, or in hybrid environments with minimal setup.

Organizations using Phosphorus typically achieve:
• Full visibility into all connected devices
• Reduction in attack surface through automated remediation
• Elimination of default credentials and insecure configurations
• Faster response to vulnerabilities and compliance requirements
• Lower operational burden on security teams

xIoT refers to the extended Internet of Things, including all connected cyber-physical devices such as IP cameras, printers, IP phones, POS terminals, HVAC and building management systems, access control systems, PLCs, PDUs, BACnet devices, environmental sensors, industrial controllers, medical devices, and more. These devices are often unmanaged, lack centralized security controls, and introduce significant risk due to default credentials, outdated and vulnerable firmware, expired or self-signed certificates, and device misconfigurations.

Most organizations lack visibility into their connected devices. Many run with default passwords, outdated firmware, or insecure configurations, making them easy targets for attackers. These devices often sit outside traditional security controls, creating blind spots that attackers exploit for initial access and lateral movement.

The Genus-Species Model

One of the early technical challenges was scale.
xIoT environments include:
• Millions of device models
• Thousands of manufacturers
• Constantly evolving firmware and configurations

However, Phosphorus discovered that devices operate on a Genus-Species model:
• Devices are identified at both the manufacturer family level (genus) and the specific model/variant level (species)
• This enables rapid, accurate classification across over a million device models
• New device types can be added quickly without rebuilding detection logic
• Example: for 10,000 printer models (species) under a major manufacturer, they only operated on five different types of software-on-a-chip (genus)

👉 This approach allows Phosphorus to scale device coverage exponentially, while maintaining high-fidelity accuracy required for remediation—not just visibility.

Real-world data show that xIoT security challenges are driven by five core issues:

1. Asset Inventory Gaps
Many organizations cannot produce a complete inventory
Unknown devices create major blind spots

2. Default Credentials
~70% of devices are shipped with default passwords
Primary vector for compromise and lateral movement

3. Vulnerable Firmware
Majority of devices run outdated or exploitable firmware
Exploits often bypass traditional endpoint defenses

4. Misconfigurations
Insecure services (e.g., Telnet, FTP) remain enabled
Misconfigurations can lead to operational disruption or breach

5. End-of-Life Devices
~26% of devices are no longer supported
No patch path exists—only mitigation or replacement

👉 These issues represent fundamental hygiene gaps, not advanced threats

Attackers are increasingly targeting xIoT because:
• IT endpoints are increasingly difficult to hack; devices are now the low hanging fruit
• They are poorly managed and rarely patched
• They often have default credentials or weak configurations
• They provide a path for lateral movement into IT systems

Example attack pattern:
• Initial access blocked on IT systems
• Attacker scans for unmanaged xIoT devices
• Compromises an IoT device (e.g., camera)
• Uses it to deploy ransomware or move laterally (e.g. Akira ransomware attack)

👉 xIoT devices are becoming a backdoor into otherwise secured environments

Based on real-world deployments, effective xIoT security requires:
• Complete device discovery and inventory
• Continuous monitoring for drift
• Automated password rotation and credential management
• Firmware management with exploit context (KEV, EPSS)
• Configuration hardening (disable insecure services)

👉 These are foundational controls—not optional enhancements

Phosphorus reduces ransomware and operational risk by:
• Eliminating default credentials
• Identifying and fixing vulnerable firmware
• Hardening configurations to remove attack paths
• Monitoring for drift and unauthorized changes
• Providing backup and recovery capabilities for devices

👉 This prevents attackers from using xIoT devices as an entry point or persistence mechanism

Phosphorus supports a wide range of connected devices, including:
• IoT devices like cameras, printers, and badge readers
• OT and industrial systems such as PLCs and controllers
• IoMT devices like infusion pumps and patient monitors
• Network infrastructure and building management systems

This breadth enables a complete view of the xIoT attack surface across industries.

Phosphorus uses its patented Intelligent Active Discovery, which interacts with devices through their native protocols instead of relying on network traffic analysis. This approach is far superior and delivers accurate device identification and risk assessment without disrupting operations or overwhelming sensitive systems.

Phosphorus currently delivers 96% precision for customers on average.

It delivers high-fidelity, device-level accuracy because it:
• Communicates directly with devices
• Collects real attributes (not inferred data)
• Profiles devices using firmware, services, and protocols

This avoids the inaccuracies common in:
• MAC address lookups
• Passive traffic analysis

Phosphorus provides deep risk visibility, including:
• Default or weak credentials
• Outdated or vulnerable firmware with CVE, KEV, and EPSS context
• Expired or self-signed certificates
• Insecure configurations and open ports
• End-of-life or unsupported devices

Banned or high-risk devices, including those restricted by NDAA Section 889

Phosphorus identifies and remediates:
• Default or reused passwords
• Vulnerable or outdated firmware
• Expired or misconfigured certificates
• Insecure configurations
• End-of-life devices
• Non-compliant or banned devices
• Known exploitable vulnerabilities (KEV-based prioritization)

Yes—this is a core differentiator.

Phosphorus enables:
• Bulk remediation across thousands of devices
• Scheduled changes within maintenance windows
• Policy-based automation

Examples:
• Rotate passwords across all devices
• Upgrade firmware fleet-wide

Without accurate inventory:
• Risks cannot be identified
• Ownership cannot be assigned
• Remediation cannot be executed

Many organizations:
• Cannot identify all devices on their network
• Rely on incomplete or inferred data
• Miss entire categories of risk

👉 Phosphorus provides deterministic, high-fidelity inventory as the foundation for all downstream security operations

Yes. Phosphorus enables direct, automated remediation across xIoT devices, including:
• Password rotation and credential enforcement
• Firmware upgrades and downgrades
• Certificate replacement and renewal
•Configuration hardening, such as disabling Telnet or FTP

These actions can be executed at scale across thousands of devices with minimal operational impact.

Phosphorus automatically detects and replaces default or weak credentials across devices. It enforces password policies, schedules rotations, and securely stores credentials in an embedded vault, reducing one of the most common attack vectors in xIoT environments.

Phosphorus continuously identifies firmware versions across devices, enriches them with CVE, KEV, and EPSS intelligence, and automates patching workflows. It supports both upgrades and safe downgrades to maintain stability while eliminating exploitable vulnerabilities.

Phosphorus reduces risk by combining three core capabilities in a single platform:
1. Discover and assess every device
2. Harden and remediate vulnerabilities automatically
3. Continuously monitor for drift and emerging risk

This approach ensures that risks are not only identified but actively eliminated.

Phosphorus extends Zero Trust principles to connected devices by ensuring every device is identified, authenticated, continuously assessed for risk, and actively managed. It aligns directly with CISA’s Zero Trust Maturity Model across identity, device, network, and data pillars.

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Phosphorus enables organizations to meet cybersecurity and regulatory requirements by combining complete asset visibility, risk assessment, automated remediation, and compliance reporting for xIoT environments.

Core Compliance Capabilities

Comprehensive Asset Inventory
• Maintain a continuously updated inventory of all network-connected IoT, OT, IoMT, and IIoT devices.

Risk Identification & Prioritization
• Detect vulnerabilities, default credentials, insecure configurations, expired certificates, and end-of-life devices—prioritized with KEV and EPSS context.

Automated Remediation
• Execute remediation actions at scale, including password rotation, firmware updates, certificate management, and configuration hardening.

Continuous Monitoring
• Track device state, configuration drift, and emerging risks across the environment.

Compliance Reporting

Generate audit-ready reports that demonstrate:
• Device inventory and coverage
• Identified risks and remediation status
• Policy compliance and security posture over time

This enables security teams to provide clear evidence of control, mitigation, and continuous risk management to auditors and regulators.

Phosphorus supports compliance initiatives across regulated industries, including:

33 CFR Part 101 (U.S. Coast Guard – Maritime Security, Subpart F)
• Helps covered entities maintain visibility and control of cyber risks impacting marine transportation systems through device inventory, risk detection, and ongoing monitoring.

CISA Binding Operational Directive (BOD) 26-02
• Enables federal civilian agencies to identify all network-connected devices, detect end-of-life or vulnerable assets, and take action to remove or mitigate risk.

NDAA Section 889
• Identifies and enables response to prohibited or banned devices (e.g., certain Chinese-manufactured equipment), supporting compliance with federal procurement and security requirements.

Yes. Phosphorus identifies devices from restricted manufacturers, including those disguised through OEMs, white-labeling, and even unlabeled devices, and enables organizations to isolate or remediate them. This supports compliance with regulations such as NDAA Section 889.