Best practices for securing IoT/OT
There can be a great many things that can be done to secure IoT and OT networks and devices. However, some of that depends on the devices, manufacturers, and how they are implemented. The following are some of the best practices for securing an IoT/OT network and devices that can be secured in IoT and OT environments:
- OT networks:
- As much as possible, keep information and process control networks and safety system networks apart
- Make use of hardware features that enable programming safety controllers with physical control
- When making adjustments to critical processes, use change management procedures
- Use a single-direction firewall or router, rather than bidirectional network connections, for any application that depends on data being provided outside of the OT network
- Enforce stringent access control and whitelisting of applications on all servers or workstation endpoints that have access in or out of an OT network
- Keep an eye out for unusual communication...
