Secure the encryption and access on systems you can't replace.
Critical Infrastructure Security
Substations, control networks, and field assets run on hardware that outlives its cipher suites, reached over remote and vendor links that need the same scrutiny. We engineer NERC CIP interactive and vendor remote access (CIP-005 R2 and R3 for high- and medium-impact systems, see Remote Access Hardening), find where the weak encryption lives, fix what the hardware can support, and document the rest with compensating controls your CIP auditor can follow. Inside an Electronic Security Perimeter, we deliver the verified change for your team to apply.
The method
Find it, fix it, or document why you can't.
Weak cipher suites, old TLS versions, and short Diffie-Hellman keys turn up on field assets that can't be patched on the audit's schedule. Every one gets a decision your auditor can read.
Find
Where the encryption lives
An inventory of the encryption protecting BES Cyber System Information in transit and at rest (CIP-011-3), across IT, OT, and edge assets.
Fix
What the hardware can take
Risk-tiered remediation on the assets that support modern configurations, retested and evidenced so the finding closes.
Document
Why the rest stays open
A Technical Feasibility Exception or a risk acceptance with compensating controls, tracked to closure with an owner and an annual review date.
Capabilities
What FEDLIN Delivers in Critical Infrastructure Environments
For electric utilities under NERC CIP, water and wastewater utilities working through AWIA risk and resilience assessments and emergency response plans, and manufacturers running ICS and SCADA.
NERC CIP Interactive and Vendor Remote Access
Every remote and vendor access path into the control network mapped, including the cellular and satellite links that backhaul remote sites. For high- and medium-impact BES Cyber Systems, the paths are engineered to CIP-005 R2 and R3: an Intermediate System, encryption and multi-factor authentication on interactive remote access, and the ability to see and end active vendor sessions, with an evidence package your auditor can follow. Paths that can't change get a risk-acceptance record with compensating controls. Work inside an Electronic Security Perimeter runs through your integrator, after personnel risk assessment. See Remote Access Hardening.
Vulnerability Management
Triage and risk-acceptance recommendations written for the owner who signs them, intake-to-closure workflows, backlogs tracked in your GRC platform, and a risk register your executives can read.
NIST 800-53 Control Implementation
Controls built into your cloud and on-premise infrastructure, with evidence mapped to CIP requirements and NIST 800-53 control families so one set of evidence answers both.
SSP Development
System boundary documentation, control narratives, and pre-assessment validation, written so one set of documentation answers CIP standards and NIST 800-53.
NIST AI RMF for Critical Infrastructure
AI entering a NERC/FERC-regulated environment (LLM integrations, anomaly detection, agentic monitoring) scoped to what it may reach, logged, and mapped to the NIST AI RMF Critical Infrastructure Profile and your existing CIP controls.
Post-Quantum Readiness
An inventory and migration roadmap for the encryption across your OT and IT boundary, sequenced around the capital cycles your hardware actually runs on. See PQC Readiness.
Experience
Background
NERC/FERC CIP Environments
Vulnerability management across BES Cyber Assets, EACMS, and physically distributed OT and edge infrastructure: risk-tiered remediation, compensating-control records, GRC-tracked backlogs, executive risk-register reporting, and cryptographic remediation on hard-to-patch field assets.
OT/ICS Architecture
IT/OT security architecture for environments running ICS and SCADA: zero trust and network segmentation across converged IT/OT, identity and privileged-access controls, and threat detection and incident response, mapped to NIST CSF, NIST 800-53, CIS Controls, and IEC-ISA 62443.
Bench Depth
Our bench includes OT/ICS and SCADA assessment experience across water and wastewater utilities, oil and gas, and manufacturing, including NERC CIP assessments, and risk-and-resilience work aligned to AWWA J100.
Business status, NAICS codes, and teaming arrangements: see the Capability Statement →
Framework Coverage
Scoping work behind your contract, or a teaming arrangement?
Book a scoping call. Once an NDA is in place, we scope the work over a channel you choose and return a fixed scope within 24 hours (business days), priced for the firm that holds the contract.
Book a Scoping CallNot sure where to start? Tell us where you are.
Evaluating your security posture before a funding round, compliance deadline, or enterprise deal?