// service · Managed Services
Watch the plant without pretending monitoring is the program
Passive OT monitoring at the IT/OT boundary. 24/7 detection ranked by plant impact under QUICK. Alerts become owned work in Resilion.
Most IT/OT boundary monitoring runs blind after go-live. Sensors get deployed, dashboards get built, and nobody reads them. Alerts pile up against IT severity scoring that ignores plant impact. Vendor patch windows slip and east-west traffic shifts, but the rule sets do not. Six months on, the SOC has no idea which alerts would take a line down.
ConvergeWatch keeps eyes on the boundary. Passive sensors at boundary firewalls, IDMZ choke points, and core OT SPAN ports feed a 30-day baseline, then continuous 24/7 detection against OT/ICS-specific tradecraft. We decode Modbus, EtherNet/IP, OPC UA, S7, and vendor stacks, and map traffic to the operations it protects.
Every anomaly is ranked through the QUICK framework: quality, uptime, information integrity, compliance, and key deliverables, so your team acts on what threatens production, not on alert volume. Semi-annual workshops keep detection tuned as the plant changes.
// FAQ
Questions about ConvergeWatch OT monitoring
- What is ConvergeWatch?
- ConvergeWatch is Hillstrong’s managed OT monitoring service. Passive sensors at the IT/OT boundary and OT SPAN ports feed 24/7 detection tuned to OT/ICS tradecraft, and every anomaly is ranked under the QUICK framework, quality, uptime, information integrity, compliance, key deliverables, so your team knows what to act on this week.
- How is it different from an IT SOC or MSSP?
- IT monitoring scores alerts on IT severity that ignores plant impact, so the SOC never knows which alerts would take a line down. ConvergeWatch decodes OT protocols, maps traffic to crown functions, and ranks by production consequence.
- Is the monitoring intrusive?
- No. Sensors are passive, placed on boundary firewalls, IDMZ choke points, and core OT switch SPAN ports, with no taps in production paths.
See this work on your sites
Book a 30-minute demo. Bring the last assessment and the sites in the first wave.