Problem
Legacy Control Systems
Industrial sites often rely on older PLCs, SCADA platforms, unmanaged switches, unsupported operating systems, and vendor-specific communications.
Typical impact
Typical impact
- unsupported software exposure
- insecure remote access
- limited patching options
- poor documentation
- operational dependency on ageing assets
How Meridian helps
We assess legacy environments and develop proportionate engineering controls that reduce risk without creating unnecessary operational disruption.
Related guidance
Continue through related service, problem and resource pages for the same OT cybersecurity topic.
Discuss legacy control systems
Book a technical discovery call to discuss the control system, project stage, documentation gap, or assurance requirement without exposing sensitive site or client details.