AiVibeSecure Remote Access for OT
Secure remote access for OT is the controlled way of letting engineers and vendors reach industrial systems from outside the plant, using brokered gateways, multi-factor authentication, least-privilege access and session monitoring.
Secure remote access for OT is the set of architectures and controls that allow engineers, vendors and support staff to reach industrial systems from outside the plant without exposing control networks to direct internet or corporate access. A typical design routes sessions through a remote access gateway or jump server in the industrial DMZ, with multi-factor authentication, individual named accounts, encrypted connections and approval workflows before access to specific assets is granted.
Remote access is essential for vendor support, diagnostics and expert assistance, especially at sites without specialist staff, but it is also a frequent attack path. Unmanaged remote desktop tools, shared passwords, always-on VPNs and cellular modems installed by vendors have been exploited in OT incidents. In the 2015 attack on the Ukrainian power grid, attackers used stolen credentials and remote access to operate distribution control systems.
Good practice includes granting access just in time and only to the assets needed, recording or monitoring sessions, separating read-only monitoring from changes to controllers, and requiring local operator awareness or approval before changes are made. Access should be removed promptly when contracts end. NIST SP 800-82 and IEC 62443 address remote access controls, and changes to machine programs remain subject to the site's management of change and OEM guidance.
Key points
- Sessions are brokered through gateways or jump servers in the industrial DMZ
- Requires named accounts, multi-factor authentication and encryption
- Unmanaged vendor tools and always-on VPNs are frequent attack paths
- Just-in-time access and session recording limit and record what users do
Where AiVibe comes in
In AiVibe's AiAmbA AI Factory, the AiAmbA IoT edge layer keeps writes to machines deny-by-default and AI agents only propose changes that a trained operator confirms. AiVibe's security services include vulnerability assessment and penetration testing, and AiVibe is ISO/IEC 27001:2022 certified.
Related terms
- Industrial DMZ (IDMZ)OT & Industrial Cybersecurity
- Engineering Workstation SecurityOT & Industrial Cybersecurity
- Zero Trust Architecture (ZTA)Cybersecurity & Compliance
- OT Network MonitoringOT & Industrial Cybersecurity
- Deny-by-Default ControlOT & Industrial Cybersecurity
- Purdue ModelOT & Industrial Cybersecurity