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This skill details implementing a ransomware-resistant, immutable backup strategy using the restic tool. It leverages S3-compatible Object Lock (Compliance Mode) to ensure Write Once Read Many (WORM) storage, preventing deletion or modification by attackers. The process includes automated backup, cryptographic integrity verification (restic check), and scheduled restore testing, adhering to advanced security standards like 3-2-1-1-0.

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 skill provides a comprehensive guide to implementing advanced memory protection mechanisms on Windows endpoints. It covers critical techniques like Data Execution Prevention (DEP), Address Space Layout Randomization (ASLR), and Control Flow Guard (CFG). Use this when hardening systems against various memory corruption exploits, such as buffer overflows and ROP chains, to significantly boost overall security posture.

This guide details the implementation of microsegmentation using Akamai Guardicore, enabling organizations to map complex application dependencies, visualize east-west traffic flows, and enforce least-privilege network policies. It is crucial for achieving zero-trust compliance by preventing lateral movement across heterogeneous workloads in data centers, cloud environments, and Kubernetes clusters.

This skill guides the implementation of Mobile Application Management (MAM) policies, enabling robust data protection for corporate assets on both managed and unmanaged mobile devices (BYOD). It covers configuring app-level controls such as Data Loss Prevention (DLP), selective wiping, and containerization using platforms like Microsoft Intune and Azure AD. Use this when enforcing data separation between personal and work environments without requiring full device enrollment.

This skill details the deployment of Cisco Identity Services Engine (ISE) for comprehensive network access control. It utilizes 802.1X, MAC Authentication Bypass (MAB), and posture assessment to centralize policy enforcement. ISE acts as a RADIUS policy server, providing dynamic VLAN assignment, downloadable ACLs, and robust authentication for both wired and wireless enterprise environments.

Suricata is a high-performance, open-source network threat detection engine used for deep packet inspection. This skill details the deployment and configuration of Suricata in Intrusion Prevention System (IPS) mode. It covers setting up custom rules, integrating third-party rulesets (like Emerging Threats), and actively blocking malicious traffic in real time, making it essential for robust network security and compliance enforcement.

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.

OPA Gatekeeper is a powerful Kubernetes admission controller that enforces policies using Rego rules. It utilizes ConstraintTemplates and Constraints to validate, mutate, or deny API requests at the cluster admission stage. This tool is essential for implementing policy-as-code practices, ensuring that Kubernetes deployments adhere to organizational security standards, compliance requirements, and best practices, such as mandating labels or blocking privileged containers.

A comprehensive playbook designed for Operational Technology (OT) and Industrial Control Systems (ICS) environments. It provides structured, phased incident response procedures aligned with SANS PICERL, IEC 62443, and NIST standards. It specifically addresses safety-critical challenges, process availability, and the unique coordination required between IT Security, OT Engineering, and Plant Operations during cyber incidents, such as ransomware attacks.

This guide details passive OT network traffic analysis using Nozomi Networks Guardian sensors. It provides methods to achieve comprehensive asset visibility, real-time threat detection, and vulnerability assessment across sensitive Industrial Control Systems (ICS) without disrupting operations. It is crucial for building robust OT Security Operations Centers (SOCs) and ensuring compliance with industry standards like IEC 62443.

This guide details the implementation of advanced, phishing-resistant, passwordless authentication using Microsoft Entra ID. It covers configuring FIDO2 security keys, Windows Hello for Business, and passkey support via Microsoft Authenticator. Use this skill to eliminate reliance on passwords, mitigate credential stuffing attacks, and satisfy strict regulatory mandates for modern identity access management.