Hello, I am

Mackenzie Korevaar-Dorsey

Security Engineer & Aspiring Red Teamer

As a dedicated cybersecurity student and active security practitioner, I bridge the gap between academic theory and real-world offensive operations. Specializing in vulnerability research, CTF challenge design, and full-stack application development, I create realistic security scenarios using Flask, Docker, and custom exploitation techniques to advance the security community.

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Education & Certifications

Education

Western Governors University

B.S. Cybersecurity and Information Assurance

Current Student | Focus: Network Defense & Offensive Security

Certifications

CompTIA Security+
CompTIA Network+
CompTIA A+
ITIL Foundation

Professional Experience

Columbia Electric Supply

Jan 2024 - Present

Inside Sales

Yakima, WA · On-site

Generated sales leads, contacted customers, prepared quotes, and closed deals to exceed sales targets.
Managed customer database and collaborated with sales team, warehouse staff, and vendors for timely order delivery.
Utilized direct sales, customer service, and cybersecurity skills to identify new business opportunities.
Tier 1 Help Desk Support: Lead support for the local branch, including:
- Configuring and managing DHCP, WAN/LAN, VOIP, and subnet systems.
- Managed modernization updates: upgrading outdated DSL to fiber optic connections, modernizing/adding access points for complete coverage.
- Creating and maintaining technical documentation for processes.

Volunteer Experience

Red Team Association

February 2024 - Present

Security Engineer & Challenge Designer

Active contributor to the security community, specializing in offensive security simulations and CTF architecture. Develop full-stack applications, custom vulnerabilities, and containerized infrastructure for large-scale security competitions.

Architected custom exploitation challenges for BSides Seattle 2025, including custom vulnerability implementation and automated patching solutions.
Lead challenge designer for BSides Seattle 2026, developing Flask-based web applications with Docker containerization and API key authentication systems.
Coordinate technical teams to build multi-stage Active Directory compromise scenarios and database-driven CTF infrastructure.

ISSA (Information Systems Security Association)

Volunteer

Experience Team Member

Provide technical support for chapter events and presentations, ensuring seamless delivery of security education and professional development content.

Set up and configure audio and visual equipment for in-person and hybrid events.
Ensure functionality and connectivity for online audience participation and engagement.
Provide technical support to speakers, ensuring clear presentation delivery without technical difficulties.

Projects

CTF Challenge Creator - BSides Seattle 2025

Architected and deployed a custom FTP service exploitation challenge featuring a preconfigured "pass the hash" vulnerability for BSides Seattle 2025, held at Microsoft Headquarters in Redmond with 1,500 attendees.

Designed and implemented custom vulnerability from scratch in FTP service source code
Deployed across 35 teams, generating 1,490 total flag submissions throughout competition
Created source code-based challenge requiring code review to identify and patch vulnerability
Developed automated patching script and published comprehensive writeup post-competition

Vulnerability Research FTP Protocol Pass-the-Hash Python CTF Design

CTF Challenge Creator - BSides Seattle 2026

Developed a full-stack web application utilizing an internal database for search queries as part of BSides Seattle 2026 CTF competition infrastructure.

Built Flask-based application with database integration for dynamic search functionality
Implemented secure API key authentication and management system
Automated deployment and startup processes using Dockerfiles for containerized environment
Designed backend architecture to handle concurrent database queries across multiple teams

Flask Docker Database Design API Development Python

Portfolio Infrastructure

Engineered this responsive portfolio to demonstrate frontend capabilities alongside security endeavors.

HTML5 CSS3 Responsive Design

Code Repositories

Explore my security tools and scripting projects.

Visit GitHub