OT Network Monitoring
Passive visibility into control-network traffic, asset inventory and baseline deviations, without disrupting operations.
No more guessing what's on the network or who's talking to it.
Security operations for critical infrastructure
Keep operations running.
Keep operations running.
Keep threats out.
OutcomeWon runs security operations for critical infrastructure and industrial environments: monitoring your control networks, detecting and responding to threats, controlling remote access, and keeping your compliance evidence in order. Every engagement comes with measurable outcomes, reported monthly.
The challenge
Operational technology keeps the lights on. It's rarely defended like it is.
Distributed, remote and often lightly staffed, industrial sites run on controllers, SCADA and field devices built for uptime, not security, while regulatory obligations keep growing.
Sectors we serve
- Power generation & renewables
- Transmission & distribution
- Water & wastewater
- Oil & gas
- Manufacturing
- Industrial operations
Challenge 01
Limited visibility
Flat or lightly segmented OT networks with little insight into what's talking to what, and no one watching after hours.
The risk: An intruder can sit in the control network for weeks before anyone notices.
How we solve itPassive OT network monitoring →Challenge 02
Uncontrolled remote access
OEMs, integrators and maintenance contractors all need in. Shared credentials and always-on VPNs become the easiest way to attack the site.
The risk: One stolen vendor password can open a path straight to the control system.
How we solve itBrokered, recorded vendor access →Challenge 03
Compliance burden
Evidence collection, access reviews and patch cycles eat time from small teams, and gaps show up at audit time.
The risk: Audit findings, possible penalties and weeks of scramble before every audit.
How we solve itEvidence built into daily operations →
By the numbers
The threat to operations is measurable
Independent industry data on where industrial environments are exposed.
Why OutcomeWon
Measured by outcomes, not alert counts
Most security services report activity: alerts forwarded, tickets closed. We agree measurable outcomes with you at kickoff and report against them every month. This is what that looks like.
Outcome reportMonth 3 · Example utility, 6 sites
Illustrative- Every OT asset inventoried and baselinedMet
- All vendor remote access brokered and recordedMet
- Critical advisories assessed within 5 business daysMet
- Security events triaged within the agreed timeMet
- CIP-007 / CIP-010 evidence package currentIn progress
Outcomes agreed at kickoff · reported monthly · 4 of 5 met
Rules we work by
Written by people who've run control systems and been through NERC CIP audits.
- We never actively scan an in-service controller or protection relay outside an approved window.
- Nothing changes on the control system without your operators' approval and your change control.
- Safety and availability come first. That is the reverse of IT's priorities, and we work that way.
- Every action we take leaves a record an auditor can follow.
- If a vendor has no patch, we put compensating controls in place instead of waiting.
Typical managed securityOutcomeWon
What you get each monthAlert and ticket countsA report against the outcomes you agreed
How success is measuredAlerts forwarded, tickets closedOutcomes met, reported monthly
Who does the workIT SOC analysts learning OTEngineers with control system and audit experience
ComplianceA separate project before each auditEvidence produced continuously as the work runs
Delivered in partnership with AssuranceData, Inc. (ADi), an OT and critical infrastructure security firm.
What the field data shows
The gaps are consistent, and fixable
Findings from Dragos field engagements, published in its 2026 Year in Review. Each bar has its own base: assessments, exercises or tests.
Industry-wide average, OT ransomware dwell time42 days
With OT-specific monitoring and response in place5 days
Each square is one day. Navy: detected and contained by day 5 with OT monitoring. Red: the rest of the 42-day industry average. Every day earlier limits what an attacker can learn, change or lock up.
Source: Dragos, 2026 Year in Review press release. The 5-day figure is Dragos-reported for organizations using its OT monitoring.
Services
One operations partner for IT and OT security
Each service below is run day to day by our team as a managed service, scoped to your sites, your assets and the regulations you answer to. You can start with the gap that worries you most, such as vendor remote access ahead of an audit, or combine them into one program. The services are built to work together: the network sensor feeds the asset inventory, the inventory drives vulnerability tracking, and every alert, session and patch decision lands in the same evidence trail. Where you already have tools or teams in place, we work alongside them rather than replacing them.
Endpoint Detection & Response
Protection and response on HMIs, historians, engineering workstations and servers, tuned for OT environments.
No more critical hosts left unwatched just because they're OT.
SIEM & Log Management
Centralized collection, correlation and retention of security events across sites, with alerting that means something.
No more logs that sit unread until after an incident.
Secure Remote Access
Brokered, approved, time-bound and recorded sessions for staff and vendors.
No more shared accounts or standing tunnels.
Vulnerability & Patch Management
Tracking of vendor advisories against your installed base, with assessed, documented and scheduled mitigation.
No more advisory spreadsheets nobody has time to triage.
Incident Response & Recovery
Defined playbooks, escalation and hands-on response when something happens, plus backup and recovery readiness.
No more working out who to call in the middle of an incident.
Reference architecture
Where we sit in your environment
A typical industrial network, drawn as the layered Purdue model engineers use: physical equipment at the bottom, business IT at the top. Our components are in red. They watch the control network without touching the process.
Hover or tap a number to trace it.
Scroll sideways to see the full diagram →
- 1Access brokerVendors and remote staff land in the DMZ, never directly on the control network. Sessions are approved, time-limited and recorded.
- 2Passive network sensorReceive-only copies of traffic from SPAN ports or taps build the asset inventory and flag anomalies without sending a packet to field devices.
- 3Endpoint detection & response (EDR)OT-appropriate detection and response on Windows hosts such as HMIs, historians, SCADA servers and engineering workstations.
- 4Log collection to the SOCEvents from hosts, firewalls and the broker are gathered in the DMZ and sent outbound only, encrypted, to our analysts.
- 5SegmentationFirewalls between IT, the DMZ and operations, with rules reviewed so only documented traffic crosses each boundary.
Secure remote access
Vendor access without the standing VPN
Compromised VPN and jump host credentials show up in 73% of Dragos incident response cases. We replace always-on tunnels with a controlled auditable path.
- 1
Request
The vendor requests access to a specific asset, tied to a work order or reason.
- 2
Approve
Your site owner approves it. Identity is verified with multi-factor authentication.
- 3
Connect
A brokered session reaches only the approved system, with no inbound VPN and no network-wide access.
- 4
Record
The session is monitored and recorded, so you can see exactly what was done.
- 5
Expire
Access ends automatically when the window closes. The record becomes audit evidence.
Vulnerability management
Patch what matters, protect the rest
In OT, patching everything at once isn't realistic. Every patch can mean an outage window. We track vendor advisories against your actual inventory, act immediately on what is exploitable, and schedule the rest with your maintenance plan.
25% of ICS advisories in 2025 came with no patch or mitigation from the vendor. That's where compensating controls such as segmentation, monitoring and access restrictions do the work.
- 3%Now. Act immediately.
- 71%Next. Compensating controls, or fix at the next maintenance cycle.
- 27%Never. Don't warrant remediation effort.
Compliance coverage
Mapped to the standards you answer to
Where each service provides controls or evidence. For NERC CIP registered entities, and for everyone else, the NIST Cybersecurity Framework 2.0. Programs can also be aligned to IEC 62443.
| Service | CIP-002 | CIP-003 | CIP-004 | CIP-005 | CIP-007 | CIP-008 | CIP-009 | CIP-010 | CIP-011 | CIP-013 | CIP-015 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Asset inventory & assessment | ●Primary | ○Supports | ●Primary | ||||||||
| OT network monitoring | ○Supports | ○Supports | ○Supports | ●Primary | |||||||
| Endpoint detection & response | ●Primary | ○Supports | ○Supports | ||||||||
| SIEM & log management | ○Supports | ●Primary | ○Supports | ○Supports | |||||||
| Secure remote access | ○Supports | ●Primary | ○Supports | ○Supports | |||||||
| Vulnerability & patch management | ●Primary | ●Primary | ○Supports | ||||||||
| Incident response & recovery | ●Primary | ●Primary | |||||||||
| Compliance program support | ○Supports | ●Primary | ●Primary | ●Primary | ●Primary |
| Service | GV | ID | PR | DE | RS | RC |
|---|---|---|---|---|---|---|
| Asset inventory & assessment | ○Supports | ●Primary | ||||
| OT network monitoring | ○Supports | ●Primary | ||||
| Endpoint detection & response | ●Primary | ●Primary | ○Supports | |||
| SIEM & log management | ●Primary | ○Supports | ||||
| Secure remote access | ○Supports | ●Primary | ||||
| Vulnerability & patch management | ●Primary | ●Primary | ||||
| Incident response & recovery | ●Primary | ●Primary | ||||
| Compliance program support | ●Primary | ○Supports | ○Supports |
Scroll sideways to see all standards →
● Primary control or evidence○ SupportingHover a standard for its title. Compliance remains the responsibility of the registered entity; we help you meet and evidence it.
Approach
Your first 90 days
A typical engagement. Timing depends on the number of sites and what's already in place. Outcomes are agreed in week one and reported every month after.
- Days 0–15
Kickoff & outcomes
Meet stakeholders, confirm scope and agree the outcomes we'll be measured on. Begin automated, OT-safe discovery and gather existing documentation.
- Days 15–45
Assess & design
Automated inventory and vulnerability assessment, gap analysis against your framework, and a prioritized roadmap and architecture for each site.
- Days 45–75
Deploy
Install sensors, endpoint protection, log collection and remote access brokering under your change control. Establish baselines and response playbooks.
- Days 75–90
Operate
Go live with monitoring and response. Hand over runbooks, deliver the first outcome report, and start building the evidence package.
- Ongoing
Run & improve
Continuous monitoring, monthly reporting against outcomes, access reviews, advisory tracking and audit support.
Self-check
How ready is your OT environment?
Ten questions, two minutes. Your answers stay in your browser. Nothing is sent unless you choose to email us the results.
Do you have a complete, current inventory of the OT assets at every site?
Is your OT network separated from IT, with a DMZ between them?
Is OT network traffic monitored for threats, including after hours?
Are security logs from OT systems collected centrally and reviewed?
Do vendors connect through an approved, recorded path rather than standing VPNs?
Is multi-factor authentication required for all remote access into OT?
Do HMIs, historians and engineering workstations have endpoint protection suited to OT?
Are vendor security advisories tracked against the equipment you actually run?
Do you have a tested OT incident response plan and offline backups of controller configurations?
Could you produce your compliance evidence for an audit within a week?
Will monitoring disrupt our operations?
No. Network monitoring is passive: sensors receive copies of traffic from SPAN ports or taps and never send packets to field devices. Any active discovery is OT-safe, scheduled with you and goes through your change control.
Do you work with organizations that aren't NERC CIP regulated?
Yes. Water and wastewater, oil and gas, manufacturing and other industrial operators face the same threats. We align those programs to the NIST Cybersecurity Framework 2.0 and IEC 62443.
What do "outcomes" mean in practice?
At kickoff we agree measurable outcomes with you, such as full asset inventory coverage, all vendor access brokered and recorded, or audit evidence available on demand. They become part of the engagement, and we report progress against them every month.
Do we have to replace our existing tools or vendors?
No. We work alongside your current equipment, OEM support relationships and IT team, and use what you already have where it fits.
Who owns the data and evidence?
You do. Inventories, logs, reports and compliance evidence produced in the engagement belong to you.
Do you need to be on site?
Some steps, such as installing network sensors, may need site access, coordinated with your operations team. Day-to-day monitoring and response is delivered remotely.
What happens when something is detected?
We triage, investigate and escalate according to playbooks agreed with you. Nothing on the control system is changed without your operators' approval, and we support any required reporting, such as under CIP-008.
How is an engagement priced?
Pricing is based on your sites, capacity and the services you need, and every engagement includes agreed outcomes reported monthly. Contact us for a scoped proposal.
Get started
Let's scope your environment
Tell us about your operations: sector, number of sites, and the regulatory frameworks you answer to. We'll come back with a proposed scope and engagement options.