No two OT environments are the same, and standard security blueprints almost never fit. Every brownfield site carries its own mix of legacy protocols, undocumented shadow connections, vendor-specific systems and network structures that evolved under production pressure rather than security design. The result is that organizations struggle to know where to start, and often have security tools already in place that they are not fully using.

Drawing on field experience across diverse manufacturing environments, experts from NTT Data and Fortinet share practical measures that deliver immediate impact without requiring a full re-architecture.

In this insightful discussion, Barbara Hauer and Daniel Buhmann discuss:

• How existing firewalls and switches can be configured to provide OT visibility and microsegmentation without new hardware;
• Why remote access remains the most urgent pain point;
• How integration between visibility vendors, ICS platforms and security tooling eliminates the need to rip and replace existing infrastructure.