TechLeague

    Security

    Security

    Zero Trust, SASE/SSE, IAM, PKI, hardening, SOC, MITRE ATT&CK.

    This is the TechLeague pillar page for Security: 63 hand-curated guides, blueprints and roadmaps, grouped by sub-topic so you can go from zero to production fast. Start anywhere β€” every article is independent and links back to its cluster.

    Latest articles

    Zero Trust & SASE9

    Security
    Β·14 min read

    Zscaler Zero Trust Exchange vs. Netskope One vs. Cloudflare One: SSE in 2026

    Deep-dive into Zscaler, Netskope, and Cloudflare One for 2026. Comparing PoP coverage, inline decryption, CASB API, DLP, ZTNA, DEM, and pricing for enterprise SSE.

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    Security
    Β·6 min read

    CASB deep dive

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·8 min read

    Microsegmentation: the practical guide that doesn't break apps

    From workload tagging to enforcement: identity-based policy, east-west firewalls and how to roll out without downtime.

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    Security
    Β·7 min read

    SASE vs SSE: which one for your org

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Secure Web Gateway architecture

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Zero Trust for data: DSPM and CSPM

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·10 min read

    Zero Trust in practice: what NIST SP 800-207 actually requires from your network

    NIST SP 800-207 is the official Zero Trust document. A direct translation for network and security engineers: principles, components, and how to apply it without falling for vendor marketing.

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    Security
    Β·7 min read

    Zero Trust pillars and roadmap

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    ZTNA flows explained

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    IAM & MFA13

    Security
    Β·6 min read

    AD CS attacks (ESC1-8)

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Active Directory tiering model

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    FIDO2 security keys deployment

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    JWT pitfalls and best practices

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Kerberoasting defense

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    MFA bypass tactics and defenses

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    mTLS deployment patterns

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    NTLM relay defense

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    OAuth 2.1 deep dive

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    OpenID Connect deep dive

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    Passkeys overview

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Phishing-resistant MFA in 2026

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    SAML pitfalls in 2026

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    SOC & Detection10

    Security
    Β·6 min read

    Choosing a SIEM in 2026

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    MITRE ATT&CK for network engineers: turning the matrix into controls

    Map ATT&CK tactics to network controls: segmentation, NetFlow, DNS sinkhole, deception and SOC playbooks.

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    Security
    Β·6 min read

    MITRE D3FEND overview

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    NDR vs EDR vs XDR

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Purple team exercises that work

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    Sigma rules overview

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    SOAR playbook design

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Tabletop exercises for security

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Threat hunting fundamentals

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    YARA rules overview

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Compliance & PKI12

    Security
    Β·7 min read

    Certificate lifecycle with ACME

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    CIS Benchmarks overview

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Data classification frameworks

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    DLP architecture

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    GDPR for engineers

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    HSM and KMS for engineers

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    ISO 27001:2022 roadmap

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    LGPD for engineers

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    NIST CSF 2.0 overview

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    PCI DSS 4.0 overview

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    PKI design best practices

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    SOC 2 for startups

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    More on this topic19

    Security
    Β·15 min read

    AWS GuardDuty vs. Defender for Cloud vs. GCP Security Command Center 2026

    Deep dive into AWS GuardDuty, Microsoft Defender for Cloud, and GCP Security Command Center for 2026. Comparing CSPM, CWPP, threat detection, and multi-cloud ROI for seven-figure decisions.

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    Security
    Β·15 min read

    AWS Secrets Manager vs Azure Key Vault vs GCP Secret Manager: 2026 Deep Dive

    Critical comparison of AWS Secrets Manager, Azure Key Vault, and GCP Secret Manager for 2026. Analyzes features, security, pricing, and integration for cloud and hybrid workloads.

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    Security
    Β·15 min read

    AWS Shield vs Azure DDoS vs GCP Cloud Armor: Hyperscale DDoS Mitigation 2026

    Deep-dive comparison of hyperscale DDoS protection: AWS Shield Advanced, Azure DDoS Protection Standard, and GCP Cloud Armor. Evaluating L3/4/7 defenses, costs, and response in 2026 for critical workloads.

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    Security
    Β·7 min read

    MITRE ATT&CK Cloud Matrix

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    BCP and DRP fundamentals

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Business Email Compromise defense

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    BIMI overview

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Confidential computing overview

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Email security: DMARC, DKIM, SPF

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    DNS rebinding defense

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Hardening Linux servers

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Hardening Windows servers

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    IPv6 security best practices: dual-stack and IPv6-only without surprises

    IPv6-specific threats and controls: RA guard, DHCPv6 guard, ND inspection, prefix delegation and ACLs.

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    Security
    Β·6 min read

    KQL for Microsoft Sentinel

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    OSINT for blue team

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    Secret management design (Vault, AWS SM)

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    SMTP TLS, MTA-STS and TLSRPT

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·6 min read

    Splunk SPL cheatsheet

    Practical, blueprint-driven walk-through with design choices, pitfalls and a fast learning path.

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    Security
    Β·7 min read

    TLS 1.3 and Encrypted SNI: what changes for network security

    How TLS 1.3, ESNI/ECH and DoH/DoT impact NGFW visibility, decryption strategy and DNS security.

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    TechLeague Challenges

    Stop reading about Security. Start competing.

    Every guide on this page maps to a hands-on challenge with real ranking. Solve the lab, submit the config, climb the leaderboard.

    Open the challenge arena β†’

    FAQ

    Where should I start with Security?
    Open the "Certifications" or "Fundamentals" cluster above and read top-down β€” every guide is self-contained.
    Are these guides updated for 2026?
    Yes. Every post on this page is dated 2026 and follows current vendor blueprints.
    Do I need a lab to follow them?
    Recommended. Most guides include lab suggestions; for Security a free trial or sandbox is usually enough.