ICS / OT Access

Securing the Systems That Can’t Go Down

Industrial control systems — PLCs, SCADA, DCS, and HMIs — are the backbone of manufacturing, energy, water, and transportation. They’re also among the most attacked and least protected parts of an organization’s IT landscape. OT environments were built for uptime, not for security, and traditional PAM tools rarely fit the air-gapped, protocol-strict reality of a plant floor.

PDAccess brings privileged access to ICS/OT where it belongs: air-gapped, on-premises, and fully recorded.

Air-Gapped by Design

OT networks are frequently isolated from the corporate network and the internet by design. PDAccess is built to run inside that boundary, not around it.

• No internet dependency — the platform operates fully within your OT perimeter.
• On-premises deployment — PDAccess runs in your own data center or plant, on your own infrastructure.
• Air-gap friendly — sessions are brokered locally, so you don’t have to bridge OT to IT or to the cloud.

You keep your OT network exactly as isolated as it needs to be, while still getting modern access control.

On-Premises, On Your Infrastructure

The proxy model is a natural fit for OT. The customer keeps their own infrastructure; PDAccess brokers every privileged session through proxies the customer deploys inside the OT network.

• Proxy in your OT network — the access proxy lives where the systems are, so targets never open a management endpoint.
• Your data stays yours — no OT data leaves your premises.
• Protocol-aware — brokers the access paths OT actually uses, without forcing a foreign gateway.

Fully Recorded Sessions

In an OT environment, a recorded session is both a compliance requirement and an operational safety net. PDAccess records every privileged session.

• Full session recording — graphical and text sessions captured for later review.
• Command and action logging — a complete trail of what each operator or technician did.
• Forensic readiness — if something goes wrong on the plant floor, you have the record.

Contractor and Maintenance Access

OEMs, integrators, and maintenance contractors need access to ICS/OT systems, but they shouldn’t hold standing credentials to critical infrastructure. PDAccess gives them scoped, time-bound access that expires automatically — with every session recorded and every identity unique.

• Time-boxed access — maintenance windows open and close; access is removed when they end.
• No standing credentials — contractors never hold a plant-floor password.
• Per-session identity — every action is attributable to a specific person.

Compliance for Critical Infrastructure

ICS/OT access is under increasing regulatory pressure from IEC 62443, NIST SP 800-82, and sector-specific frameworks. PDAccess provides the controls these frameworks demand:

• Per-user accountability — unique identity and MFA for every OT session.
• Session recording — a complete, auditable record of privileged activity.
• Automated revocation — access removed the moment it’s no longer needed.

The Business Impact

Organizations using PDAccess for ICS/OT access achieve:

• Air-gapped, on-prem security — no cloud dependency, no bridged OT networks
• Eliminated shared credentials — no standing plant-floor passwords
• Audit-ready records — session recording that satisfies IEC 62443 and NIST SP 800-82
• Faster troubleshooting — technicians access systems without exposing them
• Reduced operational risk — no open management interfaces, no VPN tunnels

Bottom Line

Critical infrastructure deserves security controls that match its importance — without breaking the isolation that keeps it running. PDAccess delivers air-gapped, on-premises, fully recorded privileged access for ICS/OT environments, with a proxy deployed in your own OT network and compliance built in. Protect uptime, satisfy regulators, and give your teams the access they need.

#PDAccess #PAM #IAM #ICS #OT #SCADA #ZeroTrust #Compliance