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Practical cybersecurity, explained clearly.

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Technical breakdowns and practical cybersecurity notes — written for people who ship.

Open Port Vulnerabilities: Risk Analysis and Hardening Strategies

Feb 27, 2026 • 6 min read

Open Port Vulnerabilities: Risk Analysis and Hardening Strategies

A structured technical assessment of common open port vulnerabilities, high-risk services, and defensive controls for reducing exposure across enterprise networks.

Screenshots Are Not Evidence — Until You Document Them

Feb 26, 2026 • 5 min read

Screenshots Are Not Evidence — Until You Document Them

Professional standards for documenting screenshots in cybersecurity labs, investigations, and technical reporting.

Firewalls Explained: Types, Technologies, and Where They Fit

Jan 29, 2026 • 5 min read

Firewalls Explained: Types, Technologies, and Where They Fit

A practical breakdown of firewall types, deployment models, and their role in modern defense-in-depth architectures.

HTTP/2 Rapid Reset (CVE-2023-44487): Protocol Semantics Weaponized

Oct 13, 2023 • 4 min read

HTTP/2 Rapid Reset (CVE-2023-44487): Protocol Semantics Weaponized

A technical breakdown of the HTTP/2 Rapid Reset vulnerability (CVE-2023-44487), how it enabled record-breaking DDoS attacks, and what it means for modern Layer 7 defense strategies.

Prof Ryan

Practical cybersecurity notes on systems, networks, and real-world defense.

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