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  • How it Works
    Zero Trust by design
    How it Works
    Direct Native Access (DNA)
    Direct Tunnel Access (DTA)
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    Clientless IP Tunnel

    Create a Zero Trust network without VPN Tunneling

    Clientless Serial Tunnel

    Establish a Serial (RS232) connection without borders

    Offline File Transfer

    Transfer files without exposing endpoints to the internet

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    Best-practice Guide for Secure 3rd party remote access in OT
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BifrostConnect
  • How it Works
    Zero Trust by design
    How it Works
    Direct Native Access (DNA)
    Direct Tunnel Access (DTA)
    Clientless Tunnel Access (CTA)
    Clientless IP Tunnel
    Clientless Serial Tunnel
    Offline File Transfer
  • Who We Help
    Cybersecurity & Compliance
    Engineering & Commissioning
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    Energy & Utilities
    Water Management
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  • OT Cybersecurity
    OT Cybersecurity Landscape: Denmark 2027
    Best-practice Guide for Secure 3rd party remote access in OT
    NIS2 Remote Access WHITE PAPER
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Getting Started

12
  • Admin
    • Set up your organization
    • User roles and permissions
  • Onsite User Guides
    • Onsite Step Guide
    • Connect KVM
    • Connect IP Tunnel
    • Connect Offline File Transfer
    • Connect USB Tunnel
    • Connect Serial Tunnel
    • Connect SSH
    • Connect Serial Terminal (Console Access)
  • Datasheets
    • Technical Specifications
    • Requirements

Technical Support

2
  • Feedback & Feature requests
    • Share your ideas and feedback
  • Report a bug
    • Reporting Bugs 

Release Notes

21
  • 2026
    • Remote Access Interface Release 25 June 2026
    • Direct Tunnel Release 1 June 2026
    • Bifrost Release 13 January 2026
  • 2025
    • Bifrost Release 30 Oktober 2025
    • Bifrost Release 19 August 2025
    • Bifrost Release 30 June 2025
    • Bifrost Release 11 February 2025
  • 2024
    • Bifrost Release 04 December 2024
    • Bifrost Release 16 November 2024
    • Bifrost Release 2 Oktober 2024
    • Bifrost Release 14 August 2024
    • Bifrost Release 7 May 2024
    • BifrostConnect Firmware V4.8.0
  • 2023
    • BifrostConnect Firmware V4.7.0
    • BifrostConnect Firmware V4.6.0
    • BifrostConnect Firmware V4.5.0
    • BifrostConnect Firmware V4.4.0
  • 2022
    • BifrostConnect Firmware V.4.3.2
    • BifrostConnect Firmware V.4.3.1
    • BifrostConnect Firmware V.4.2.0
  • 2021
    • BifrostConnect Firmware V.4.0.0

Best Practice Guide

14
  • About this guide
  • Core Framework
  • Architecture & Principles
  • Threat Context
  • Zero Standing Privilege
  • Four OT Access Patterns
  • Degraded Mode & Legacy Equipment
  • Defence in Depth
  • Compliance & Implementation
  • Residual Risks
  • Definitions
  • References
  • Operational Lifecycle 
  • Procurement Appendix

Implementing the OT Best Practice Framework with BifrostConnect

6
  • Overview and Framework Mapping
  • Threat Model
  • Scenario Implementation – Scenario 1
  • Scenario Implementation – Scenario 2
  • Scenario Implementation – Scenario 3
  • Scenario Implementation – Scenario 4
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  • Release Notes
  • 2024
  • Bifrost Release 04 December 2024
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Bifrost Release 04 December 2024

Release Version 

Remote Access Interface v2.3.0

Cloud v1.19.0

Firmware v4.11.0

Release Date 

04 Dec 2024

New Features
  • You can now change between RS232 Serial and USB serial via the Remote Access Interface.
  • You can now reformat the Mass Storage partition to default via the menu on the Bifrost Unit.
  • You can now change the network priority via the menu on the Bifrost Unit without being in a session.
Bug Fixes 
  • We resolved an issue where the USB config file failed to apply Ethernet settings generated via the Remote Access Interface.
  • We fixed a bug where the “Network Priority” was displayed in the incorrect order in the Remote Access Interface.
Updated on January 30, 2025
BifrostConnect Firmware V4.8.0Bifrost Release 16 November 2024
Table of Contents
  • Release Version 
  • Release Date 
  • New Features
  • Bug Fixes 
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