Secure Remote OT Access Management with PrivX OT

You need to provide internal employees and external contractors access to systems such as PLCs, HMIs, SCADA and DCS, engineering workstations, network devices and legacy equipment across distributed sites. The challenge is providing that access without broad VPN connectivity, shared accounts, rogue credentials, persistent privileges, or gaps in session visibility.

PrivX OT brokers access to authorized assets and services, helping organizations replace network-level trust with identity-based, time-limited access governed from a central platform.

Centralize access control

Manage access to hundreds of OT systems from a single digital gatekeeper using Zero Trust, just-in-time role-based access controls, with integrated job approvals and ticketing workflows.

Enable resilience, high availability

Gain real-time visibility into distributed OT environments, enabling instant access for troubleshooting and seamless on- and off-site monitoring, maintenance, and upgrades to minimize downtime and maximize productivity.

Optimize safety and productivity

Safeguard cyber-physical systems from vulnerabilities and cyberthreats, ensuring safe, continuous operations and maximizing productivity across vital OT processes.

Control access

Authenticate users through existing identity providers and MFA, then apply role-based policies, approvals and Just-in-Time authorization so access is limited by user, role, asset, service and time window.

Reach OT Assets

Connect authorized users to PLCs, HMIs, SCADA and DCS systems, engineering workstations, network devices and legacy equipment. Use browser-based access where appropriate and native engineering applications and protocols where required.

Protect and audit sessions

Keep credentials out of users' hands and maintain oversight with session recording, live monitoring, session termination and detailed audit trails.

Operate at scale

Apply central governance across distributed plants and sites while supporting employees, contractors, OEMs and vendors within segmented OT architectures.

Auditable OT access

Record privileged sessions and maintain detailed access logs. Apply access-control practices aligned with NIST CSF 2.0, NIS2, FIPS 140-3 and IEC 62443.

Secure File Transfer

Support controlled transfer of software, configuration files, and maintenance packages while protecting data in transit and integrating malware scanning into file-transfer workflows.

Give vendors access to the asset, not the whole network.

OEMs, SIs, and maintenance providers often need temporary access to specific systems. VPNs can expose a wider network segment, while shared accounts weaken accountability and make access difficult to revoke. With PrivX OT you can:

Replace shared accounts with identity-based access.
Require MFA, approvals, and defined access windows.
Restrict each vendor to the systems and services required for the job.
Maintain a complete record of who connected, where, and when.

Secure remote access for your workforce and third parties

Centralized control and seamless integrations allow you to provide local, remote, and third-party access to industrial, commercial, and critical infrastructure environments.

Support flexible connectivity

Secure large file transfers

Streamline governance and compliance

Strengthen your security posture

Prepare for the quantum era

“SSH’s approach allows organizations to strengthen access governance, prepare for emerging security requirements, and do so in a way that minimizes operational disruption—an alignment that is not easily achieved in the industrial space.”

Jonathan Gordon Directing Analyst, Industrial Cyber

Support OT tools, systems and workflows

Protocol-agnostic means access is not limited to a single vendor, device type or administrative protocol. PrivX governs access to a range of operational assets while allowing users to work in a browser or approved native application, depending on task and target system.

PLCs and industrial controllers
HMIs and operator interfaces
SCADA and DCS systems
Engineering workstations and maintenance systems
Network and security devices
Legacy equipment that cannot support a modern endpoint agent

PrivX is a leader for OT secure remote access according to KuppingerCole! Get the report here.

Secure remote access for OT

Zero Trust remote access for complex OT environments

Why choose PrivX™ OT

Experts trust PrivX™ OT

Rated highly by leading analysts

Secure Remote Access Lifecycle Management for Operational Technology (OT)

KuppingerCole Leadership Compass 2025: SRA for Operational Technology

OT Security Vendor Profile: SSH Communications Security (SSH)

Secure access starts here. Protect your critical systems today.