Security

Network defense, multi-factor authentication, perimeter firewalls, backup resilience, and small business security strategies.

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Network Perimeter Firewall Stateful Inspection Architecture Diagram

October 31, 2026 • 0 Comments

Firewall Basics: What Firewalls Do and What They Cannot Protect

A technical overview of network firewalls: packet filtering, stateful inspection, next-gen application inspection, and architectural limitations.

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FIDO2 WebAuthn Public Key Cryptographic Authentication Diagram

October 31, 2026 • 0 Comments

Authentication Security: Passwords, Passkeys, and Multi-Factor Authentication

A technical evaluation of modern authentication methods: comparing traditional passwords, SMS OTP, TOTP tokens, and cryptographic FIDO2/WebAuthn passkeys.

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Phishing Email Header Analysis and DMARC Domain Authentication Diagram

October 31, 2026 • 0 Comments

Recognizing Phishing: Technical Indicators, Spear Phishing, and Email Defenses

A technical guide to recognizing phishing attacks: identifying deceptive email headers, analyzing homograph domain spoofing, and deploying DMARC.

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Small Business Network Segmentation and Hardening Architecture Diagram

October 31, 2026 • 0 Comments

Small Business Network Security: A Practical Implementation Checklist

A practical, standards-based network security checklist for small businesses: perimeter controls, VLAN segmentation, endpoint patching, and least privilege.

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The 3-2-1 Backup Architecture and Immutable Storage Vault Diagram

October 31, 2026 • 0 Comments

The 3-2-1 Backup Rule: Architecting Enterprise Data Resilience

A technical blueprint for data protection: implementing the 3-2-1 backup methodology, immutable air-gapped repositories, RPO, and RTO benchmarks.

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