Deployment

Passive, on-premise,inside your boundary.

A dedicated local appliance observes OT traffic and process data without issuing control commands. It is not in the path, it does not phone home, and it runs the full product on a disconnected site.

Passive collectionNo control commandsAir-gapped from cloud and IT
1.0The boundary

Everything that decides anything
is inside the fence.

Decoding, correlation, model inference, investigation and storage all run on the appliance. The drawing below is the whole data flow.

Inside the site boundary
OT network

Mirrored traffic from a SPAN or TAP port. PLCs, HMIs, engineering stations, sensors.

Process data

Read-only historian or SCADA feeds, scoped by the customer.

Site context

Asset lists, zones, drawings and system events the site already keeps.

Vardar applianceInside the fence
  • Protocol decoding
  • Process relationships
  • Learn, detect, explain
  • Local storage
Raw OT data stays local

Findings out

Signed updates in
Local findings

Classified events with evidence trail, for OT and security teams on site.

Optional SOC, IT or SIEM integration

Findings and summaries only, under customer policy.

Outbound

Nothing raw. No packets, no process values, no site model.

Inbound

Signed detection and model updates, by approved media on air-gapped sites.

2.0Four steps

From mirror port
to guided response.

1

Mirror traffic

Vardar

Connects to a passive SPAN or TAP port and starts decoding.

You provide

One mirror port on the OT switch, or a TAP on the segment to be observed.

2

Map the environment

Vardar

Discovers assets, learns zones and the relationships between commands and process variables.

You provide

A read-only historian or SCADA account and, where available, an asset list or P&ID.

3

Detect the physics

Vardar

Checks network behaviour against process signals and classifies each finding as operational, cyber, mixed or unknown.

You provide

Nothing. The site model is learned from what the plant already does.

4

Guided response

Vardar

Explains each finding in plain English and recommends the next check.

You provide

The playbooks and approval gates that fit how the site already works.

3.0Air-gapped operation

The full product,
not the cut-down one.

Detection and the local analyst ship on the appliance. A site with no route to the internet runs everything, and receives detection and model updates as signed media.

No cloud dependency

Site operation does not depend on any external service.

Signed updates

Detection and model updates are verified on the appliance before they are applied.

Local storage

Evidence and findings are kept on the premises for the retention the customer sets.

4.0Integrations

Read-out by default.
Write-back by approval.

Vardar fits around the systems already in place. Integrations start as read-out of findings. Anything that acts on the plant is gated by customer policy and approval.

SIEM and SOC

Classified findings and evidence summaries, so the SOC sees the process context.

Ticketing and change management

Planned changes recognised; findings opened as cases with the evidence attached.

Existing network monitors

Vardar runs alongside, adding the physical-process evidence path.

Response integrations

Scoped and off by default. Enabled per integration, per site, by the customer.

5.0Data residency

What leaves the site:
nothing raw.

DataWhere it goes
Raw OT trafficStays on site
Process valuesStay on site
Learned site modelStays on site
Classified findings and evidence summariesTo the systems the customer connects, under customer policy
Anonymised detection patternsOnly if the customer opts in; never traffic, values, addresses or names
6.0Regulatory evidence

Evidence your auditors
can follow.

On-site monitoring, classification and an evidence trail are what these frameworks ask operators to show. Vardar produces them inside the boundary.

NERC CIP-015EPA AWIATSA security directivesEU NIS2IEC 62443

One mirror port. One critical process.

An evaluation needs a SPAN or TAP port, a read-only process data account and the questions both teams ask about one process today.

Evaluate one critical process