Industries · Manufacturing
Downtime is measured in revenue per minute; ransomware crosses from email to MES in one wrong click. intSignal runs enterprise IT, MDR, and recovery alongside OT and ICS security alignment—so engineering, operations, and IT stop debating whose dashboard is “real.”
Line up
Runbooks that treat production calendars as immovable objects—coordinating IT changes, OT maintenance, and security containment without improvising on the night shift.
OT
segmentation & visibility aligned to ISA/IEC-style practice
MDR
enterprise + plant-adjacent telemetry as authorized
DR
MES, ERP, and historian tiers with tested restore order
Pressures
Operational risk
Legacy PLCs next to modern MES, OEM remote tunnels nobody documented, and ERP upgrades that collide with month-end close. Supply-chain attacks land through smaller partners first.
intSignal delivery
Named owners for identity, plant-adjacent Windows and Linux, SOC escalations, and vendor access reviews—with tickets your quality and internal audit teams can trace.
Plant-to-enterprise
Quick links from plant-adjacent systems to enterprise services—each card opens a depth page when you need more detail.
Scroll horizontally for the full plant-to-enterprise index →
Where we fit
High-mix lines, robotics cells, and engineering workstations that need CAD and PLM without leaking IP through consumer cloud sync.
Historians, batch servers, and safety-instrumented systems where change freezes are contractual with production.
Regional plants, joint ventures, and contract manufacturers—consistent identity and network policy without HQ becoming a bottleneck.
OT assurance
We do not replace your process hazard analysis—but we can execute IT and security work that respects it.
Documentation of zones, conduits, and firewall rules your insurers and customers increasingly ask for.
Time-bound, monitored sessions for OEM support—not permanent VPNs into Line 3.
IT and OT-adjacent visibility coordinated with maintenance systems where in scope.
Test rings and rollback tied to production windows your operations calendar owns.
Containment options pre-approved with engineering—not generic “isolate everything” scripts.
Evidence packages that map to ISO 9001-oriented IT controls when your program requires it.
Leadership mosaic
Service levels for MES interfaces, label printers, shop-floor thin clients, and quality lab systems—so “IT ticket” is not the excuse for missed shipments.
PAM-aware patterns, badge integration where deployed, and contractor access that expires on schedule.
Email and web controls, vendor risk touchpoints with procurement.
Analytics and integration where data classification and IP agreements allow.
Architecture, modernization, and handoff to managed run-state.
Engagement
Line topology, MES/ERP dependencies, OT asset sketch, vendor access map, prior incidents and near-misses.
Joint IT–OT backlog: segmentation gaps, identity sprawl, logging blind spots, unowned OEM tunnels.
Execute changes in approved windows; tune SOC use cases for plant-relevant alerts.
Monthly metrics, DR tests with line restart criteria, continuous improvement tied to production KPIs you choose.
Why manufacturers choose intSignal
Every change ticket carries rollback and a named operations contact—not “we will monitor.”
Enterprise and plant-adjacent alerts correlated where telemetry allows—fewer duplicate bridges during incidents.
OEM and integrator access governed with expirations and evidence—not shared passwords in a spreadsheet.
Documentation maintained so you can rebadge staff or switch partners without losing tribal knowledge.
FAQ
No. We align IT and security services with your controls integrator and OEM contracts. PLC logic, safety PLCs, and SIS changes remain with qualified engineering partners unless your SOW explicitly includes agreed automation tasks.
When authorized and technically feasible, we integrate OT-relevant telemetry into MDR and SOC workflows per your segmentation design. We do not bypass safety or engineering change control.
We align patch and vulnerability SLAs to your production calendar, document risk acceptance when you defer, and escalate when compensating controls are required—not silent drift.
DLP, collaboration governance, and endpoint controls scoped to your classification scheme—implemented with engineering and legal so legitimate collaboration is not accidentally strangled.
Share plant count, primary ERP/MES stack, OT maturity, and top downtime or security drivers. We respond with a proposed service map, RACI, and commercial approach.
Manufacturing has become one of the most-targeted sectors for cyber extortion, and the reason is leverage. An hour of unplanned downtime on a high-volume line can cost tens of thousands of dollars in lost throughput, scrapped work-in-progress, and missed shipments, so attackers know a plant is under pressure to pay and restart production fast. The exposure is also structurally different from a typical office network. Programmable logic controllers, human-machine interfaces, historians, and SCADA systems were engineered for determinism and 20-year service lives, not for monthly patch cycles or credential rotation. Many speak unauthenticated protocols such as Modbus, EtherNet/IP, and PROFINET, sit on flat networks reachable from the business LAN, and cannot be taken offline for updates without scheduling a production stop.
Pasting an IT playbook onto that environment, with aggressive agent rollouts, forced reboots, and automated port scanning, is how availability incidents get caused rather than prevented. IT/OT convergence widened the problem before it started to help: ERP-to-MES integration, remote vendor access for machine builders, and IIoT sensors feeding cloud analytics all punched holes between the enterprise and the process network. intSignal treats the OT environment as a first-class domain with its own risk model, where availability and safety outrank confidentiality, changes are governed by maintenance windows, and every control is validated against its effect on the line before it ships. We work alongside your controls and automation engineers, not around them.
The single highest-return control in a plant is segmentation. Using the Purdue Enterprise Reference Architecture as a map, we separate enterprise IT at Levels 4 and 5 from the industrial zone at Levels 0 to 3 with a demilitarized zone that brokers every data flow, so historians, patch servers, and remote-access jump hosts live in the DMZ instead of exposing controllers directly. Inside the industrial zone we build cell and area zones with defined conduits between them, following the ISA/IEC 62443 zone-and-conduit model, so a compromised HMI or an infected contractor laptop cannot move laterally to a safety-instrumented system or an adjacent line. This shrinks the blast radius: ransomware that lands in the business network stays out of the process network, and a fault in one cell does not have to stop the whole plant.
Visibility comes first, and it has to be safe. Because active scanning can knock over fragile legacy controllers, we deploy passive network monitoring using span and tap-based traffic analysis with OT-aware sensors to build an accurate asset inventory, baseline normal command traffic, and alert on anomalies such as unexpected PLC logic downloads or new engineering-workstation connections. Safety interlocks and safety-instrumented systems are treated as untouchable: monitored, never probed or interfered with. Remote access for OEMs and integrators is funneled through brokered, time-boxed, and recorded sessions with privileged-access controls, closing the always-on VPN back doors that vendors routinely leave behind.
Most plant-floor outages do not begin with a targeted OT exploit; they begin with a phished credential or a business-network ransomware event that spreads because IT and OT were never properly separated. Resilience therefore has to span both sides: phishing-resistant MFA and email defense on the enterprise side, and hardened, offline backups of PLC programs, HMI images, historian data, and engineering workstations on the OT side. We define realistic RPO/RTO targets per production area, keep golden configurations and firmware immutable and off the network, and rehearse recovery so rebuilding a controller or reimaging a line is a procedure your maintenance team can execute during a 2 a.m. incident, in hours rather than days. Independent research such as the IBM Cost of a Data Breach report consistently shows that organizations with tested response plans and network segmentation contain incidents faster and at lower cost, and on a plant floor that difference is measured directly in shipped product.
Yes. Most plants run controllers that are years or decades past their last update and cannot be rebooted outside a maintenance window. We compensate with segmentation, network-layer virtual patching, passive monitoring, and strict access control rather than forcing risky updates. When patching is genuinely possible, we schedule and validate it against your production calendar.
No. We use passive, OT-aware monitoring that reads a mirror of network traffic and never sends probes to controllers, so there is no scan-induced fault. Any active check or endpoint agent is tested in a lab or during a planned window first, and every change is reviewed for its effect on availability and safety before it is deployed.
We enforce Purdue-model separation between enterprise IT and the industrial zone through a brokered DMZ, so a business-network infection has no direct path to controllers. Combined with cell-level segmentation, hardened offline backups of PLC and HMI images, and tested recovery runbooks, an IT incident stays contained and production keeps running or is restored quickly.
We align OT programs to ISA/IEC 62443 and the NIST Cybersecurity Framework, and we can support CMMC and NIST 800-171 for defense manufacturers, plus SOC 2 on the IT side. We map controls to whichever regime your customers and cyber-insurer require and produce the evidence auditors ask for.
Yes. We coordinate with your OEMs, machine builders, and controls engineers rather than displacing them, and we secure their remote access through brokered, recorded, time-limited sessions instead of standing VPNs. The goal is to add a security and monitoring layer that respects your existing support contracts and equipment warranties.