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This skill guides the implementation and auditing of advanced network segmentation within Kubernetes using Calico. It enables establishing zero-trust microsegmentation by creating and managing NetworkPolicy and GlobalNetworkPolicy resources. Use this to strictly control pod-to-pod traffic, enforce namespace isolation, restrict egress rules, and apply DNS-based security policies, significantly hardening your cluster's security posture.

This guide provides comprehensive security hardening procedures for enterprise Google Workspace environments. It covers advanced topics such as enforcing phishing-resistant Multi-Factor Authentication (MFA), configuring email authentication (DMARC/SPF/DKIM), implementing Data Loss Prevention (DLP), and securing super admin accounts using Advanced Protection Program enrollment. Ideal for achieving high compliance and defending against BEC and phishing attacks.

Guides the implementation of Kubernetes Pod Security Standards (PSS) using the Pod Security Admission (PSA) controller. This process involves labeling namespaces with security profiles (Privileged, Baseline, Restricted) and enforcing policies via 'enforce', 'audit', or 'warn' modes. It is crucial for hardening container workloads, migrating away from deprecated PodSecurityPolicy, and ensuring compliance at the namespace level.

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.

A comprehensive guide to implementing Kubernetes Pod Security Admission (PSA), a native admission controller stable since v1.25. PSA enforces Pod Security Standards (Privileged, Baseline, Restricted) at the namespace level, replacing the deprecated PodSecurityPolicy. Use this skill to harden Kubernetes environments, establish robust security baselines, and control pod deployment security using enforce, audit, or warn modes.

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.

A comprehensive guide to hardening Kubernetes Role-Based Access Control (RBAC) by enforcing the principle of least privilege. This skill covers auditing excessive cluster-admin roles, implementing namespace-scoped roles, separating service accounts, and integrating external identity providers (OIDC) to significantly reduce the attack surface against privilege escalation and lateral movement.

A comprehensive tool for auditing container security posture by detecting potential escape vectors. It analyzes Kubernetes Pod specs for dangerous configurations, such as running in privileged mode, dangerous capability assignments (like CAP_SYS_ADMIN), host namespace sharing, and writable hostPath mounts. Ideal for security assessments and incident response to prevent container breakout.

This skill provides advanced techniques and code examples for monitoring, mapping, and pivoting across adversary-controlled infrastructure. It leverages Passive DNS, Certificate Transparency logs, Shodan/Censys scanning, and network fingerprinting (JARM/JA3S) to discover C2 servers, phishing domains, and exploitable assets over time, which is crucial for advanced security operations and threat intelligence gathering.

This tool monitors Certificate Transparency (CT) logs to detect unauthorized certificate issuance for owned domains, discover hidden subdomains, and track suspicious certificate activity. By querying public CT logs and APIs (like crt.sh), it helps build continuous security pipelines, identify potential phishing infrastructure, and map the external attack surface for comprehensive threat intelligence.

This guide details the operational workflow for namespace-scoped tenants within KubeSphere DevOps. It outlines how users without cluster-admin privileges can securely perform DevOps operations by strictly utilizing KubeSphere's dedicated APIs (`/kapis/`) and authenticating via OAuth tokens, ensuring strict resource isolation and access control within their designated namespace.

This skill provides guidelines and mechanics for managing multi-tenant environments within KubeSphere. It focuses on the controlled creation and configuration of core resources—including workspaces, projects, and users—while strictly adhering to least privilege principles. It details the proper use of RBAC roles (Viewer, Regular, Admin) and guides users through the process of setting up organizational boundaries and access controls for secure, scalable deployment.