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4CGuardNetwork Security
REGULATORY & AUDIT ASSURANCE

Compliance & Regulatory Blueprints

Practical network security architectures, microsegmentation strategies, and automated audit reporting mapped directly to global cybersecurity frameworks.

PCI DSS 4.0Payment Card Industry

PCI DSS 4.0 Firewall & Network Security Controls Guide

Complete technical blueprint for implementing and automating PCI DSS 4.0 Requirement 1 (Network Security Controls) on enterprise firewalls.

Requirement 1.2: Restrict inbound and outbound traffic to strictly what is necessary for CDE operations.
Requirement 1.3: Prohibit direct public access between the Internet and any system in the CDE.
Architecture Guide
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HIPAAHealthcare

HIPAA Security Rule: Network Segmentation & ePHI Protection

Architectural guide for healthcare networks: segmenting Electronic Protected Health Information (ePHI), IoMT medical devices, and hospital Wi-Fi.

Section 164.312(a)(1): Access Control - Restricting network paths to databases containing ePHI.
Section 164.312(e)(1): Transmission Security - Enforcing TLS 1.3 encryption for ePHI across untrusted networks.
Architecture Guide
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SOC 2 Type IISaaS & Cloud

SOC 2 Type II: Boundary Protection & Firewall Audit Controls

Implementing SOC 2 Trust Services Criteria (CC6.6 & CC6.7) boundary protection, change auditing, and automated evidence collection.

CC6.6: Logical Boundary Protection - Deploying next-gen firewalls at cloud VPC perimeters.
CC6.7: Transmission Safeguards - Preventing unencrypted data transmission across public boundaries.
Architecture Guide
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NIST SP 800-53Federal & Enterprise

NIST SP 800-53 Rev. 5: SC-7 Boundary Protection & AC-4 Controls

Mapping 4CGuard firewall policies to NIST SP 800-53 SC-7 (Boundary Protection), AC-4 (Information Flow Enforcement), and AU-2 (Audit Events).

SC-7: Boundary Protection - Interconnecting system perimeters through managed security gateways.
AC-4: Information Flow Enforcement - Enforcing dynamic Layer 7 security policies between security domains.
Architecture Guide
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ISO 27001:2022Global Enterprise

ISO/IEC 27001:2022 Annex A: Network Controls (A.8.20–A.8.23)

Compliance architecture mapping for ISO 27001:2022 controls A.8.20 (Network Security), A.8.21 (Security of Network Services), and A.8.22 (Segregation).

Control A.8.20: Network Security - Managing and controlling network perimeters to protect information systems.
Control A.8.21: Security of Network Services - Establishing service level parameters and authentication controls.
Architecture Guide
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CIS Controls v8All Industries

CIS Critical Security Controls v8: Network Infrastructure Hardening

Implementation manual for CIS Controls 4 (Secure Configuration of Enterprise Assets) and 12 (Network Infrastructure Management).

Control 4.1: Establish and maintain a secure configuration process for enterprise firewalls and network devices.
Control 4.4: Enforce administrative access over secure encrypted channels (SSHv2 / TLS 1.3).
Architecture Guide
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GDPREuropean Union

GDPR Article 32: Technical Measures for Network Data Protection

Complying with General Data Protection Regulation (GDPR) Article 32 requirements for data confidentiality and secure boundary transmission.

State-of-the-Art Encryption: Enforcing wire-speed IPsec and WireGuard tunnels for inter-site EU personal data transfers.
Data Exfiltration Prevention: Inspecting outbound connections to block unauthorized data uploads to unvetted third parties.
Architecture Guide
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CIPAEducation

CIPA Compliance: High-Capacity Web & SafeSearch Filtering for K-12

Children's Internet Protection Act (CIPA) architecture for school districts: categorizing web traffic, forcing SafeSearch, and blocking obscene content.

Category-Based URL Filtering: Blocking visual depictions that are obscene, child pornography, or harmful to minors.
Mandatory SafeSearch Enforcement: Rewriting DNS and HTTP headers to force Google, Bing, and YouTube strict SafeSearch modes.
Architecture Guide
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CMMC 2.0Defense Industrial Base

CMMC 2.0 Level 2 & 3: Defense Industrial Base Firewall Requirements

Implementing Cybersecurity Maturity Model Certification (CMMC 2.0) Level 2 & 3 perimeter protection for safeguarding Controlled Unclassified Information (CUI).

AC.L2-3.1.3: Control the flow of Controlled Unclassified Information (CUI) across interconnected security enclaves.
SC.L2-3.13.1: Monitor, control, and protect organizational communications at external system boundaries.
Architecture Guide
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GLBAFinancial Services

GLBA Safeguards Rule: Perimeter Defense for Financial Institutions

Gramm-Leach-Bliley Act (GLBA) Safeguards Rule implementation: securing Nonpublic Personal Information (NPI) at the network perimeter.

16 CFR Section 314.4(c)(1): Enforce access controls and least-privilege routing to financial databases.
16 CFR Section 314.4(c)(3): Encrypt customer NPI in transit over public networks with enterprise IPsec/WireGuard.
Architecture Guide
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FedRAMPCloud Service Providers

FedRAMP High/Moderate: Perimeter Gateways & Interconnection Controls

Engineering FedRAMP-compliant boundary protection, interconnection security agreements (ISAs), and continuous monitoring for cloud platforms.

FedRAMP SC-7: Boundary Protection - Establishing dual-homed, highly available perimeter firewall clusters with redundant uplinks.
FedRAMP IA-2: Identification and Authentication - Enforcing PIV/CAC card and FIDO2 MFA for all administrative access.
Architecture Guide
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NERC CIPEnergy & Utilities

NERC CIP-005: Electronic Security Perimeters for Power Grids & Utilities

Implementing North American Electric Reliability Corporation (NERC) CIP-005 Electronic Security Perimeter (ESP) isolation for bulk power systems.

CIP-005-6 R1: Electronic Security Perimeter - Routing all electronic access through an explicitly configured Electronic Access Point (EAP).
CIP-005-6 R2: Remote Access Management - Enforcing intermediate jump hosts and multi-factor authentication for remote engineering.
Architecture Guide
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Essential EightAustralia & Global

ACSC Essential Eight: Application Control & Macro Defense Blueprints

Operationalizing the Australian Cyber Security Centre (ACSC) Essential Eight mitigation strategies on next-generation network firewalls.

Mitigation 1: Application Control - Enforcing Layer 7 signatures to block unauthorized software execution and port hopping.
Mitigation 3: Restrict Microsoft Office Macros - Blocking macro-enabled file downloads over HTTP/HTTPS at the perimeter.
Architecture Guide
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FFIECBanking

FFIEC Architecture & Operations: Firewall Assurance for Banks

Aligning bank firewall configurations with the Federal Financial Institutions Examination Council (FFIEC) Cybersecurity Handbook.

Perimeter Defense Architecture: Demilitarized Zones (DMZs) separating core banking mainframes from online banking web tiers.
Dual-Control Policy Administration: Requiring peer review and multi-person sign-off for firewall rule changes.
Architecture Guide
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HITRUST CSFHealthcare & Cloud

HITRUST CSF v11: Domain 09 Network Protection & Medical Data Enclaves

Implementing HITRUST Common Security Framework (CSF) Domain 09 network security controls for healthcare payers, providers, and SaaS vendors.

Control 09.m: Network Routing Control - Restricting network routing to ensure traffic does not traverse unauthorized intermediate networks.
Control 09.o: Segregation of Networks - Establishing dedicated enclaves for electronic health record (EHR) processing systems.
Architecture Guide
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SOX ITGCPublic Companies

SOX ITGC Section 404: Network Boundary Controls for Financial Reporting

Implementing Sarbanes-Oxley Act (SOX) Section 404 Information Technology General Controls (ITGC) around ERP and financial reporting databases.

Access Control to Financial Systems: Restricting network access to SAP, Oracle Financials, and NetSuite to authorized accounting IP ranges.
Segregation of Duties (SoD): Preventing software developers from having network access to production financial databases.
Architecture Guide
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TISAXAutomotive

TISAX VDA ISA: Automotive Supply Chain Prototype Protection

Configuring network perimeters for Trusted Information Security Assessment Exchange (TISAX) compliance, safeguarding prototype CAD data.

Protection of Prototype CAD Data: Enforcing deep packet inspection and egress data leak prevention on engineering VLANs.
Third-Party Supplier Segregation: Isolating external automotive suppliers into restricted microsegments with dedicated WireGuard tunnels.
Architecture Guide
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EU DORAEU Financial

EU DORA: Network Redundancy & ICT Resilience for Financial Entities

Implementing Digital Operational Resilience Act (DORA) requirements: network redundancy, testing, and third-party ICT risk management.

Article 9: Protection and Prevention - Deploying resilient firewall architectures with active/active clustering and sub-second failover.
Article 10: Detection - Continuous deep packet inspection identifying unauthorized connections and protocol anomalies.
Architecture Guide
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EU NIS2EU Infrastructure

EU NIS2 Directive: Critical Infrastructure Perimeter Hardening

Meeting European Union NIS2 Directive Article 21 requirements for essential and important entities: supply chain security and incident handling.

Article 21.2(a): Policies on risk analysis and information system security for perimeter gateways.
Article 21.2(b): Incident handling - Automated real-time alerting on perimeter breaches and DDoS attacks.
Architecture Guide
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NYDFS 500NY Financial

NYDFS 23 NYCRR 500: Section 500.06 Audit Trails & Perimeter Controls

Complying with New York Department of Financial Services (NYDFS) Cybersecurity Regulation 23 NYCRR 500 for banking and insurance institutions.

Section 500.06: Audit Trails - Maintaining 3-year searchable audit records for all perimeter security events and firewall changes.
Section 500.12: Multi-Factor Authentication - Enforcing MFA for all external network access and administrative interfaces.
Architecture Guide
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TECHNICAL EVALUATION

Evaluate 4CGuard on your network topology

Schedule an architectural walkthrough with a network security engineer. Review Layer 7 inspection rules, encrypted payload decapsulation, and Active Directory policy integration.

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Topology & throughput sizing review
Virtual & hardware appliance evaluation
Active Directory & Okta integration