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This skill guides the design and implementation of security zones and conduits for Industrial Automation and Control Systems (IACS) following IEC 62443-3-2 standards. It covers risk-based zone partitioning, defining security levels (SL-T), deploying microsegmentation using industrial firewalls, and validating the architecture against the Purdue Model.

This guide provides a comprehensive deep dive into implementing advanced network segmentation and zero-trust security controls within Kubernetes clusters using Calico. It covers standard Kubernetes NetworkPolicy, utilizing Calico's GlobalNetworkPolicy, and defining security Tiers, ensuring fine-grained, least-privilege communication between pods, and establishing robust security architectures for compliance.

This guide details the implementation of robust network access control (NAC) using 802.1X, RADIUS authentication, and platforms like PacketFence. It enables identity-based access enforcement, performs endpoint posture assessment, and dynamically assigns users to appropriate VLANs. Ideal for achieving zero-trust architecture and meeting stringent compliance standards (e.g., PCI-DSS).

This guide details how to use Kubernetes NetworkPolicies to enforce granular, pod-level network segmentation. It covers establishing default deny rules, defining specific ingress and egress rules for services, and implementing zero-trust microsegmentation. Use this skill to build robust security architecture and prevent lateral movement within a container cluster.

A comprehensive guide to deploying and configuring Proofpoint Email Protection as a Secure Email Gateway (SEG). This solution establishes a critical security checkpoint that uses advanced ML, sandboxing, and threat intelligence to detect and block sophisticated threats, including phishing, malware, BEC, and spam, before they reach the user inbox. Ideal for organizations strengthening their email security architecture and meeting compliance standards.

This tool implements network segmentation based on the Purdue Enterprise Reference Architecture (PERA). It helps secure Industrial Control Systems (ICS) by mapping assets and data flows to specific Purdue levels (0-5), defining necessary firewall rules, and establishing DMZs. It ensures strict traffic control between IT and OT domains, adhering to standards like IEC 62443 and facilitating secure network retrofitting.

This guide details the implementation of a robust, ransomware-resilient backup architecture following the extended 3-2-1-1-0 rule. It covers critical steps such as classifying assets, defining RPO/RTO, implementing immutable or air-gapped storage, and isolating backup credentials from the production domain. Use this knowledge to design a multilayered defense against data loss and ensure reliable recovery points.

This comprehensive guide details the implementation of Zero Trust Architecture (ZTA) in multi-cloud environments (AWS, Azure, GCP). Following NIST SP 800-207 and BeyondCorp principles, it covers identity-centric access controls, micro-segmentation, continuous verification, and deploying Identity-Aware Proxies (IAP) to eliminate implicit network trust.

This skill provides comprehensive guidance on hardening and securing critical process historian servers (e.g., OSIsoft PI, Honeywell PHD) operating within Operational Technology (OT) environments. It covers best practices for network placement across the Purdue Model, implementing robust access controls, establishing secure data replication architectures through DMZs (using data diodes), preventing SQL injection, and maintaining data integrity for safety-critical and regulatory reporting purposes. It is essential for minimizing cyber risks in industrial control systems.

This guide details implementing an IEC 62443 compliant conduit architecture for secure remote access into Operational Technology (OT) environments. It mandates the use of jump servers, MFA gateways, session recording, and approval workflows within a DMZ to strictly control vendor and engineer access, eliminating direct VPN connections to critical ICS assets.

This guide outlines the implementation of Remote Browser Isolation (RBI) as a core component of a Zero Trust architecture. It details policies for URL risk classification, Data Loss Prevention (DLP) controls, and Content Disarm and Reconstruction (CDR). This is essential for hardening web access, protecting against zero-day exploits, phishing, and preventing data exfiltration from untrusted web content.

This guide provides a detailed template and directive for generating machine-readable, deterministic implementation plans. It is designed for complex software development tasks, such as adding new features, refactoring existing code, or designing system architecture. The output ensures that all steps are atomic, measurable, and structured for autonomous execution by AI agents or human teams, minimizing ambiguity and dependency.