Glossary

Privileged Access Management (PAM)

Identity Access Management

What is Privileged Access Management (PAM)?

Privileged Access Management (PAM) is a cybersecurity discipline that secures, monitors, and controls access to systems and data by users with elevated privileges. PAM solutions traditionally include features such as credential vaulting, session recording, audit trails, and just-in-time (JIT) access enforcement. These controls are critical for reducing the risks posed by administrative, vendor, and service accounts across enterprise IT systems.

PAM for OT: Why Privileged Access Management Is Different in OT, ICS, and CPS Environments

While PAM is widely adopted in IT environments, its application in OT, ICS, and CPS environments requires different considerations. Traditional PAM and IT-based remote PAM (RPAM) tools were designed for managing access to IT infrastructure (e.g., servers, cloud platforms, and databases) and focus on administrative efficiency for security teams.

In contrast, CPS/OT systems are operated by production engineers, asset custodians, and maintainers who prioritize safety, uptime, and productivity. Industry analysts underscore that IT-RPAM tools often lack the capabilities needed for CPS, including:

Support for legacy systems that lack credentials or agent support.
Operation in disconnected, intermittent, or low-bandwidth (DDIL) environments.
Compatibility with industrial protocols like Modbus, Profinet, or BACnet.
Real-time supervision with session override and multiuser collaboration.
No reliance on jump servers, firewall changes, or VPNs.

PAM for OT must also support access governance and auditability requirements across regulated critical infrastructure environments. Organizations need to control who can access specific OT and ICS assets, limit access based on identity, role, time, and approval, and maintain reliable records of privileged access activity.

How Does Xona Help with Privileged Access Management?

Xona addresses the limitations of traditional PAM and RPAM in critical infrastructure environments with secure access purpose-built for OT and ICS. Xona provides privileged access control through identity-based, asset-specific access and protocol-isolated sessions, without placing user endpoints directly on the OT network.

Xona complements traditional PAM and credential governance with OT-specific access controls, including:

Credential injection and secrets management support through integration with existing credential governance tools.
Just-in-Time (JIT) and time-bound access, session recording and replay, and live session monitoring and control.
Multi-user session collaboration with live monitoring and administrative control.
Support for existing identity systems, legacy OT environments, and disconnected, low-bandwidth, or connectivity-constrained operations.

Designed specifically for resilience, safety, and compliance, Xona enables privileged users to securely interact with OT and ICS assets from anywhere, while isolating them from the production network. This ensures that only authorized personnel can access specific systems, at specific times, with full auditability and oversight.

Xona complements traditional PAM by extending identity and access controls into OT and ICS environments with protocol-isolated, asset-specific sessions. This gives organizations a controlled way to provide privileged access while reducing direct network exposure and maintaining visibility into session activity.

Frequently Asked Questions

What is the main goal of Privileged Access Management (PAM)?

PAM secures and governs the use of elevated privileges by controlling, monitoring, and auditing access to critical systems by administrators, vendors, or service accounts.

How does PAM reduce cybersecurity risk?

PAM mitigates risks like credential theft, insider threats, and unauthorized access by enforcing least privilege, session recording, credential vaulting, and time-limited access.

Why are traditional PAM tools insufficient for OT and ICS environments?

Traditional PAM solutions are designed for IT infrastructure and often lack support for legacy devices, industrial protocols, disconnected networking, and real-time operational oversight.

What compliance standards require privileged access controls?

Frameworks such as NERC CIP, IEC 62443, TSA SD02E, and NIS2 mandate strict controls and auditability over privileged access to critical infrastructure systems.

Can PAM be applied in environments with intermittent or low-bandwidth connectivity?

Standard IT PAM tools may struggle in DDIL environments, but CPS-optimized solutions like Xona are purpose-built to support secure access in such conditions.

How does Xona deliver PAM capabilities in OT environments?

Xona enables credential injection, JIT access, and session recording without VPNs or jump servers, providing PAM-like controls purpose-built for industrial and critical infrastructure systems.