Jahcorey H.

About Jahcorey H.

I am an accomplished Senior Cybersecurity Associate with over a decade of experience in network security, vulnerability management, and threat detection. I have secured critical infrastructures, mitigated enterprise network weaknesses, and led efforts to enhance threat detection using advanced tools. My expertise lie within the domains of incident response, digital forensics, cyber defense measures, and policy development aligned with NIST standards. With a background in the U.S. Army, I have demonstrated leadership and a proactive approach to improving cybersecurity postures across various organizations.

Experience

1. Sr Cybersecurity Associate

   Positivity

   Oct 2022 — Present

   Built a defensible network infrastructure, securing 30+ routers, switches, and other components, reducingpotential threats by 40%.• Performed over 50 vulnerability assessments, identifying and mitigating 22% of enterprise networkweaknesses.• Developed new alerting techniques and improved existing alerts, detections, and advanced queries.• Analyzed 40+ malware samples using automated and manual techniques, enhancing cybersecurity measuresby 30%.• Assisted coordination, implementation, configuration, and management of an enterprise-wide ExtendedEndpoint Detection and Response security tool.• Coordinated with 5 government department leads to proactively identify adversaries and advanced persistentthreats (APT), increasing detection rates by 25% using various tools and techniques.• Researched 100+ attacks, providing custom detection, containment, and remediation recommendations,improving departmental protection by 35%.• Reviewed and improved 20+ policies and procedures based on NIST 800-53, increasing the identification ofanomalous or malicious activities by 40%.• Analyzed configuration settings and tuned 2 security tools, maximizing threat hunting effectiveness by 50%.

Education

• University of Maryland Global Campus

  Bachelor of Science - BS, Cybersecurity Management and Policy

  2015 — 2020

• Western Governors University

  Master of Science - MS, Cybersecurity and Information Assurance

  2021 — 2022

• University of South Carolina

  Bachelor of Science - BS, Computer Science

  2013 — 2014