01
OT Asset Discovery & Risk Assessment
Identify PLCs, RTUs, HMIs, network paths and known exposures. Prioritize risk with operationally safe methods.
OT Security Services
OT security built around plant-floor realities.
Protect industrial systems without compromising safety, uptime or control-system integrity.
Safety-First OT Security
Protect safety, uptime and process integrity.
OT security must protect physical processes—not just data.
Key considerations: legacy assets · industrial protocols · vendor access · uptime · physical safety.
Safety first Protect people, facilities and surrounding communities.
Availability by design Plan around production windows and system constraints.
Control-system integrity Maintain trustworthy commands, communications and process states.
Evidence-led decisions Turn findings into a prioritized remediation roadmap.
SafetyPlant-floor priorities
UptimeOperational continuity
IntegrityTrustworthy control systems
OT Security Services
One service path. From visibility to resilience.
Choose a focused assessment or a phased, end-to-end OT security program.
02
IEC 62443 Gap Assessment
Map current controls to relevant IEC 62443 requirements. Deliver a prioritized gap register and action plan.
03
OT Network Segmentation
Define OT zones, controlled conduits and an industrial DMZ aligned to Purdue-model principles.
04
Secure Remote Access
Apply MFA, approved endpoints, time-bound permissions and session recording to vendor access.
05
OT Threat Detection & Monitoring
Use passive visibility and protocol-aware detection. Deploy SCADAHawk where suitable.
06
Managed OT SOC Services
Add OT-aware triage and incident coordination to existing SOC, SIEM and SOAR workflows.
07
OT Incident Readiness & Response
Prepare escalation paths, tabletop exercises and response playbooks around plant safety and recovery.
08
Awareness & Technical Enablement
Role-based workshops and drills for leaders, engineers, IT/OT teams and operators.
09
Governance & Compliance Support
Map obligations, evidence, logging, accountability and remediation to the operating environment.
Engagement Outputs
Actionable Evidence. Clear Next Steps.
Scoped outputs turn findings into prioritized action. Typical outputs may include:
Business Outcomes
Clear Outcomes for Operations and Leadership.
A practical security program aligned with operational constraints.
Clearer asset visibility
Establish a more reliable view of industrial assets, connections and exposure.
Risk-led investment
Prioritize remediation based on operational impact, exposure and feasibility.
Controlled access
Reduce unmanaged vendor pathways and improve accountability for remote sessions.
Joined-up operations
Connect OT security insights with enterprise incident and governance workflows.
Operational Continuity
Security Controls Shaped Around Plant Realities
Changes are planned with plant stakeholders and validated against safety, uptime, vendor and maintenance requirements. No single architecture fits every site.
Clearer asset visibility
Risk-led investment
Controlled access
Joined-up operations
Architecture & Segmentation
Segment networks. Limit unnecessary pathways.
Separate enterprise IT, industrial DMZ, operations and control layers with approved, documented conduits.
Typical risk pattern · Flat network
- Corporate IT
- Operations / SCADA
- PLC · HMI · Sensors
When boundaries are weak, compromise in one connected segment may create paths toward critical industrial assets.
Target state · Zones & conduits
- Level 4/5 · Enterprise IT
- Level 3.5 · Industrial DMZ
- Level 3 · Operations
- Level 2 / 1 / 0 · SCADA, PLCs & field devices
Documented zones, conduits, firewall rules and change control create clearer boundaries and more accountable access.
Changes are planned with plant stakeholders and validated against safety, uptime, vendor and maintenance requirements. No single architecture fits every site.
Our Approach
A five-phase path to stronger OT security.
Build a baseline. Prioritize changes. Monitor continuously. Tailor each phase to site risk and operational constraints.
Awareness & Enablement
Executive briefings, role-based workshops, operator drills and technical learning for IT/OT teams.
Assessment
Asset discovery, architecture review, passive visibility and IEC 62443 gap analysis.
Transformation
Prioritized remediation, network segmentation, controlled conduits and remote-access hardening.
Technology Deployment
Deploy suitable OT detection and visibility capabilities, including SCADAHawk where appropriate.
Managed OT Security
OT-aware monitoring, incident coordination, baseline review and ongoing improvement.
A baseline scorecard and board-ready findings can help track progress across assessment and improvement cycles. Specific metrics and deliverables are agreed during scoping.
Frequently Asked Questions
OT Security: Common Questions
What is OT cybersecurity?
OT cybersecurity protects the systems that monitor or control physical processes—such as PLCs, SCADA, DCS, RTUs and industrial networks—while accounting for safety, availability and process integrity.
Will an OT assessment disrupt production?
Assessment methods are selected according to the site's risk tolerance and change-control requirements. Passive discovery and architecture reviews can reduce disruption risk, but every activity should be scoped and approved with plant stakeholders.
Does Alterego sell the SCADAHawk platform?
This service offering focuses on expert-led OT cybersecurity services and deployment. SCADAHawk is a platform from DefenXee that may be deployed as part of a suitable engagement; product sales and licensing are handled through DefenXee.
Can OT monitoring integrate with an existing SOC or SIEM?
Integration can be designed around the existing security stack and operational processes. Supported connectors, telemetry, ownership and escalation paths are confirmed during technical discovery.
Where should an organization start?
A scoped assessment is a practical starting point. It establishes an initial view of assets, architecture, exposures and priority gaps, which can then inform a phased improvement plan.
Start with the Right Baseline
Build an OT security program that respects the realities of the plant floor.
Discuss the environment, the operational constraints and the most useful first step.