Dennis O.

About

Information security professional with over 8 years of experience across security operations, penetration testing, and GRC. Expert in protecting sensitive data in regulated environments (NIST, CJIS, HIPAA) and bridging the gap between technical remediation and executive reporting.

Specialties

• Cyber Threat Intelligence
• Governance & Compliance
• IAM
• Penetration Testing
• SOC Analyst

Skills

• NIST CSF 2.0
• NIST 800-53
• CJIS
• HIPAA
• ISO 27001
• Vulnerability Management
• Active Directory Security
• SIEM
• EDR
• Incident Response保障

16 skills in total

Licenses & Certifications

• GIAC Penetration Tester (GPEN)

  GIAC

  Issued May 2015 · Expires May 2019

• GIAC Cyber Threat Intelligence (GCTI)

  GIAC

  Issued Mar 2023 · Expires Mar 2027

• Cisco CyberOps Associate

  Cisco

  Issued Jul 2023 · Expires Jul 2026

Experience

• Information Security Analyst

  Illinois Criminal Justice Information Authority (ICJIA)

  Aug 2024 — Present

  Chicago, IL

• Macha Security LLC

  • Cyber Security Specialist

    Feb 2020 — Dec 2023

    Chicago, IL

  • Security Help Desk Associate

    Jan 2017 — Feb 2020

    Chicago, IL

Education

• DePaul University

  Bachelor of Science, Mathematics & Economics

  not specified

Recent posts