Secure Remote Access for Critical IT/OT Systems

Operators of critical infrastructure such as energy, water, and industrial facilities increasingly depend on remote access to maintain and restore essential systems. Vendors, service providers, and external experts often need to connect to sensitive IT and OT environments to perform commissioning, troubleshooting, incident response, and recovery tasks.

The challenge: Enabling remote access without compromising security or availability

Industrial environments often include legacy systems, standalone workstations, offline assets, and air-gapped networks that were never designed for modern connectivity. At the same time, operations must run 24/7, and any downtime can have severe consequences for both society and for business continuity.

Traditional remote access approaches such as VPNs and access management (PAM) solutions are often not ideal. They may require changes to production networks, introduce new attack surfaces, or fail during incidents and system recovery phases. As a result, organisations face:

• Security gaps during emergency access

• Delays in bringing in external expertise

• Increased risk for cyberattacks during critical situations

The solution: Hardware-based remote access

To address these challenges, Advenica’s solution comes in the form of a remote access device designed specifically for industrial and critical infrastructure environments.

The product delivers secure, controlled connectivity without depending on the availability or integrity of the plant network itself. Access is hardware-based, time-limited, fully auditable, and built on zero-trust principles.

Key capabilities include:

• No software installation required on target IT or OT systems

• Support for native engineering tools, full KVM access, and network tunneling

• Secure connectivity even when systems are offline, isolated, or undergoing recovery

• Operation independent of traditional VPN architectures

This allows organisations to grant external experts the access they need, for exactly the time required - without exposing the wider environment.

The outcome: Secure operations and faster recovery

By deploying secure remote access tailored for industrial and critical infrastructure, organisations achieve measurable improvements in both security and operational performance.

Benefits include:

• Reduced downtime through rapid, secure access for specialists

• Maintained control and compliance when granting third-party access

• Continued operations during network failures, outages, and cyber incidents

• Faster incident response and recovery with improved system visibility

The solution has been proven across energy, water, and industrial environments, helping operators maintain service continuity even under challenging conditions.