Secure remote access into OT environments, cloud connectivity risk, and VPN/jump-host design patterns.
Remote access into an OT environment is one of the highest-risk connectivity patterns in this entire program — it exists to solve a real operational need (vendor support, remote monitoring) but every additional path into Level 0-2 is an additional attack surface. This module covers jump-host architecture (never let a remote session touch OT devices directly), VPN design for OT use cases, and the specific risks cloud historians and cloud-connected analytics platforms introduce when they need a path out of the Industrial DMZ.
By the end of this module you should be able to design a secure remote-vendor-access pattern using a jump host and time-boxed credentials — the pattern most audits check for first, because it's the most common insecure shortcut in real deployed OT networks.