The Digital Bulkhead

Navigating the Mandate: Automating IACS UR E26/E27 Compliance through the Cyber Anchor Technical Framework

Technical Whitepaper for Shipyards and Classification Societies

Version 1.0 | December 2025
Table of Contents
1The Regulatory Crisis 3
2The Cyber Anchor Architecture 5
3Data Sovereignty & Defense-in-Depth 9
4The Golden Thread of Evidence 12
5Conclusion 14
AAppendix: E27 Security Capability Mapping 15

Executive Summary

The maritime industry stands at a pivotal inflection point. With IACS Unified Requirements E26 and E27 becoming mandatory for all newbuilds contracted on or after July 1, 2024, shipyards worldwide face an unprecedented compliance challenge.

Cyber Anchor introduces a paradigm shift: Compliance-as-Code. By encoding the technical requirements of UR E27 (System-Level Security) directly into an automated validation engine, we create what we call the "Digital Bulkhead"—a technical barrier that prevents non-compliance from ever reaching the shipyard floor.

90%
Reduction in Compliance Time
26
E27 Capabilities Automated
0
Cross-Tenant Data Leaks
01
The Regulatory Crisis

Why the Manual Model Fails

The IACS UR E26/E27 unified requirements represent the most significant cybersecurity mandate in maritime history. Yet the industry's response has been largely reactive—relying on consultants, spreadsheets, and manual documentation processes designed for a simpler era.

The Compliance Bottleneck

With global newbuild orders exceeding 2,000 vessels annually and a limited pool of qualified maritime cybersecurity consultants, the manual model simply cannot scale.

The Scale of the Challenge

Consider the compliance burden for a single LNG carrier:

Requirement Manual Effort Duration
CBS Asset Inventory (E27 3.1.1) 200+ hardware components 2-4 weeks
System Classification (E26 4.1.1.3.1) Cat II/III determination 1-2 weeks
Zone/Conduit Diagrams (E26 4.2.1) Network topology mapping 2-3 weeks
CSDD Documentation (E26 4.1.2) Design description 3-4 weeks
SCRTP Generation (E26 4.1.3) Test procedures 2-3 weeks
Total Manual Effort 10-16 weeks

The Need for Automation

The maritime industry requires a solution that:

  1. Automates classification of CBS components per UR E22/E26 criteria
  2. Validates network topology against E26 4.2.1 zone requirements in real-time
  3. Generates compliant documentation (CSDD, SCRTP) from structured data
  4. Provides immutable audit trails for Classification Society surveyors
  5. Protects sensitive vessel designs with enterprise-grade security

Cyber Anchor delivers all five.

02
The Cyber Anchor Architecture

The Guardian Grid: Visual Compliance Modeling

At the heart of Cyber Anchor lies the Guardian Grid—an interactive visual modeler that transforms complex IACS requirements into intuitive, real-time validation.

GUARDIAN GRID - Zone Violation Detection SAFETY ZONE (L5) Propulsion Steering Fire Safety ✓ CAT III Protected OT ZONE (L4) ECDIS Radar AIS ✓ CAT II Segmented UNTRUSTED ZONE (L1) Gas Detection CAT III ⚠️ Crew WiFi Guest Net ✗ VIOLATION: Cat III without boundary FW NO FW! ⚠ VIOLATION DETECTED Rule: SAFETY_UNTRUSTED_NO_BOUNDARY | Severity: CRITICAL Asset: Gas Detection System (CAT III) is in Untrusted Zone without boundary device protection Reference: UR E26 4.2.1 - Zones and Conduits | Recommendation: Move to Safety Zone or add firewall LEGEND: Safety Zone OT Zone Untrusted Zone Firewall CAT III = Safety-Critical | CAT II = Important | Real-time validation per UR E26 4.2.1

Figure 1: Guardian Grid detecting a Cat III asset (Gas Detection) improperly placed in an Untrusted Zone

Validation Rules Implemented

Rule ID E26/E27 Reference Validation Logic
SAFETY_UNTRUSTED_NO_BOUNDARY E26 4.2.1 Safety systems in untrusted zones require boundary devices
WIRELESS_NOT_DEDICATED_ZONE E26 4.2.5.3 Wireless devices must reside in dedicated security zones
CAT_III_IN_SHARED_ZONE E26 4.1.1.3.1 Category III systems cannot share zones with lower categories
UNTRUSTED_DIRECT_TO_SAFETY E26 4.2.1 Direct connections from untrusted to safety prohibited

The Supplier Portal: E27 4.1 Attestation Engine

UR E27 Section 4.1 mandates that CBS suppliers (Wärtsilä, ABB, Kongsberg, etc.) attest to 26 specific security capabilities. Cyber Anchor's Supplier Portal streamlines this process:

OEM Integration Benefits

System integrators spend less time on paperwork and more time on delivery. Attestations are digitally verified, reducing back-and-forth with shipyards and eliminating lost documentation.

The Compliance Lifecycle

Cyber Anchor orchestrates the entire compliance journey from initial asset inventory through surveyor certification:

THE COMPLIANCE LIFECYCLE From Inventory to Certification INVENTORY CBS Assets E27 3.1.1 ZONING Topology E26 4.2.1 VERIFY Surveyor E26 4.1.3 CYBER ANCHOR Classify Cat II/III Validate Guardian Grid Generate CSDD + SCRTP Continuous Compliance Automation

Figure 2: The Compliance Lifecycle - automated flow from asset inventory to surveyor certification

Classification Engine

Our Classification Engine implements the logic defined in UR E22 and UR E26 4.1.1.3.1 to automatically categorize Computer Based Systems:

Category III (Safety-Critical)

Systems whose failure could result in hazardous or catastrophic consequences:

Category II (Important)

Systems whose failure could result in major consequences:

Vessel Technical File: Automated Document Stitching

Cyber Anchor's Document Stitching Engine automatically aggregates all compliance artifacts into a unified Vessel Technical File—the master compliance document required by Classification Societies:

The stitching engine calculates E27 coverage percentage and flags any gaps in supplier attestations, ensuring shipyards know exactly what's missing before surveyor review.

03
Data Sovereignty & Defense-in-Depth

The Security Imperative

Ship designs represent highly sensitive intellectual property. Network topology diagrams, system configurations, and vulnerability assessments could be catastrophic in the wrong hands. Cyber Anchor implements a defense-in-depth architecture that protects data at every layer.

SECURITY STACK Defense-in-Depth Architecture APPLICATION LAYER Row Level Security organization_id isolation JWT Claims shipyard_id validation Role-Based Access Surveyor/Admin/Operator DATA LAYER ENVELOPE ENCRYPTION (AES-256-GCM) KEK DEK/vessel IP | MAC | Serial | Firmware (encrypted) INFRASTRUCTURE LAYER Supabase Vault pgsodium at-rest TLS 1.3 in-transit protection Audit Logging immutable timestamped Multi-Tenant Isolation Encryption at Rest Physical Security Key Rotation Benefit: Traditional: O(records) - All data re-encrypted Envelope: O(vessels) - Only DEKs re-encrypted, data untouched

Figure 3: Security Stack - Defense-in-Depth from Application to Infrastructure

Envelope Encryption: Key Rotation Without Downtime

Approach Key Rotation Complexity Data Re-encryption
Direct Encryption O(records) All data must be re-encrypted
Envelope Encryption O(vessels) Only DEKs re-encrypted

Multi-Tenant Isolation: Row-Level Security

To prevent cross-tenant data leakage, we implement strict Row-Level Security (RLS) policies at the database level:

-- Every query is automatically filtered by organization CREATE POLICY vessels_strict_policy ON vessels FOR ALL USING (shipyard_id = get_user_shipyard_id()) WITH CHECK (shipyard_id = get_user_shipyard_id());

Key Guarantee: A user can ONLY access vessels where their JWT shipyard_id claim matches the vessel's shipyard_id. This enforcement happens at the PostgreSQL level—it cannot be bypassed by application code.

SOC 2 Type II Readiness

Cyber Anchor is architected for SOC 2 Type II compliance, implementing controls across all Trust Service Criteria:

SOC 2 Control Implementation
CC 6.1 - Logical Access Immutable security logs with hash chain verification
CC 7.2 - Backup & Recovery Automated weekly backup restore drills with audit logging
CC 7.4 - Change Management MoC Impact Engine tracks all topology changes
Immutable Security Logs

Database triggers enforce immutability of security event logs—DELETE and UPDATE operations are blocked at the database level. A cryptographic hash chain ensures integrity verification for audit purposes.

04
The Golden Thread of Evidence

What Surveyors Need

Classification Society surveyors (DNV, Lloyd's, ABS, Bureau Veritas) require more than documentation—they need evidence of process. When a surveyor asks "How do I know this Cat III system was properly validated?", the answer must be traceable, immutable, and cryptographically verifiable.

The Surveyor Evidence Vault

Cyber Anchor provides a dedicated Evidence Vault that aggregates all compliance artifacts into a single, audit-ready package:

SURVEYOR EVIDENCE VAULT 🔐 Cryptographic Token 📅 Time-Limited (1-90 days) 🌐 IP Whitelist 📋 ASSET INVENTORY Cat II/III classified 🗺️ NETWORK TOPOLOGY Zones & Conduits 📑 SCRTP TEST PLAN Auto-generated 📊 AUDIT TRAIL Complete history GOLDEN THREAD - Complete Traceability Asset Added → Zone Assigned → Validation → SCRTP Updated [Timestamp] [Actor] [Before/After State] - Every change is immutable Cryptographically signed evidence packages for Classification Society review

Figure 4: Surveyor Evidence Vault - Immutable compliance records with Golden Thread traceability

Audit Trail Event Sources

Source Event Types Captured
Asset Inventory Created, Updated, Deleted, Moved, Encrypted
Network Topology Zone/Conduit Created, Modified, Security Level Changed
Compliance Patch Applied, Alert Raised, Alert Resolved
Documents SCRTP Generated, Approved, Marked Outdated
Security Key Rotated, DEK Created, Access Granted

Continuous Compliance: MoC Impact Engine

Compliance is not a point-in-time achievement—it requires continuous monitoring. The Management of Change (MoC) Impact Engine automatically detects topology changes and assesses their compliance impact:

Compliance Decay Monitor

The Compliance Decay Monitor implements "active risk management"—tracking patch status and alerting when systems fall behind:

Category Warning HIGH RISK CRITICAL
CAT III (Safety-Critical) 90 days 180 days 365 days
CAT II (Important) 60 days 120 days 240 days
CAT I (General) 30 days 60 days 90 days
Key Feature

If a Category III safety-critical system has no patch logged for 6 months, a HIGH RISK alert is prominently displayed on the dashboard—ensuring no compliance gap goes unnoticed.

05
Conclusion: Scaling Maritime Resilience

The Value Proposition

Cyber Anchor transforms IACS UR E26/E27 compliance from a bottleneck into a competitive advantage:

Metric Traditional Approach With Cyber Anchor
Compliance Timeline 10-16 weeks Days
Documentation Errors High (manual) Near-zero (automated)
Surveyor Prep Time Weeks Hours
Key Rotation Downtime Hours Zero
Cross-Tenant Data Risk Application-dependent Database-enforced
For Shipyards
Reduce costs, accelerate delivery, protect IP
For Surveyors
Standardized evidence, reduced workload
For Integrators
Streamlined E27 attestation, less rework

THE DIGITAL BULKHEAD

"Preventing non-compliance from reaching the shipyard floor."

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CYBER ANCHOR | Maritime Cyber Resilience Platform