Enforce authority at the IT/OT boundary — with no external service to reach.
Energy, water, transportation, and industrial operators defend converged IT/OT environments against nation-state adversaries under NERC CIP, TSA directives, and CISA guidance. B5 Secure enforces per-action authority in-process within your .NET control and management applications — deployable in segmented and air-gapped networks.
IT/OT convergence and adversaries that move laterally.
As operational technology converges with IT, the management and control plane — often .NET applications — becomes a high-value target where a single over-privileged action can have physical consequences. Perimeter authorization cannot constrain the specific command or asset an action touches, and a cloud-only service cannot operate in a segmented network. B5 enforces at the method, inside the boundary, with no outbound dependency.
Infrastructure-protection frameworks, mapped to enforcement.
Control objectives become demonstrable at the method, inside segmented networks.
| Framework | What it requires | How B5 enforces it |
|---|---|---|
| NERC CIP (e.g., CIP-004/005/007) | Access management, electronic security perimeters, least privilege | Per-action [Permission] enforcement bound to the control method |
| TSA Security Directives | Access control and segmentation for pipeline/rail | Deny-by-default authorization with scoped, expiring credentials |
| CISA Cross-Sector CPGs | Strong access control and account management | Least-privilege credentials and execution-point audit |
| IEC 62443 | Zones, conduits, and defense-in-depth for IACS | In-process enforcement requiring no external service across a conduit |
| NIST CSF | Continuous, least-privilege access governance | Risk-adaptive, deny-by-default enforcement |
In-process enforcement for segmented networks.
A library needs no conduit to an external authorization service — the decision is made where the action runs.
No external dependency
Enforcement compiles into the control application and runs with no outbound call — safe for air-gapped and segmented zones.
Command-level authority
Authorize the specific control action against the specific asset, not a broad operator role.
Least privilege at the boundary
Scope every credential and automation identity to the action and asset it serves.
Attributable control actions
Every control or automation action is logged at the execution point with full attribution.
Supply-chain assurance
SLSA provenance, SBOM, and signed packages for the control software you depend on.
Crypto-agile, FIPS-grade
FIPS 140-3 modules and crypto-agility toward post-quantum for long-lived systems.
Automation and agents at the control plane, governed.
Scoped automation
Automation issues only the control actions it was delegated, against only the assets in scope.
Operator copilots
Assistants draft control actions for an operator to confirm; high-consequence actions require step-up.
Attributable commands
Every control-plane action is attributable to a principal and a human.
B5 enforces in the application tier, not in the OT protocol layer.
Complements network segmentation and OT monitoring.
B5 does not replace OT-protocol security, network segmentation, or ICS monitoring. It is the in-process enforcement point for the .NET management and control applications that sit above the OT layer — deployable in segmented zones where a cloud service cannot reach, with supply-chain provenance for the software you run.
Enforce control-plane authority inside the boundary.
See how a library enforces per-command authority in segmented and air-gapped networks — no external service, no egress.
Regulated-grade enforcement, at the record.
Thirty minutes with a B5 engineer: your industry’s obligations, the B1–B5 pipeline, and a data-element authorization decision you can watch happen — with the evidence trail your examiners ask for.