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Joe Sullivan

Senior Security Consultant

EXPERIENCE
Joe has over 20 years of experience in Information Security. He has worked in Incident Response, forensics, penetration testing, and security leadership as a CISO for a financial institution.

EDUCATION & CERTIFICATIONS

  • GIAC Penetration Tester (GPEN)
  • GIAC Strategic Planning, Policy, and Leadership (GSTRT)
  • GIAC Certified Forensic Examiner (GCFE)
  • GIAC Certified Incident Handler (GCIH)
  • GIAC Security Leadership (GSLC)
  • GIAC Cloud Penetration Tester (GCPN)
  • GIAC Public Cloud Security (GPCS)
  • GIAC Certified Web Application Penetration Tester (GWAPT)
  • Certified Information Systems Security Professional (CISSP)
  • CNSSI 4012 Senior Systems Manager
  • CNSSI 4013 System Administrator in Information Systems Security
  • CNSSI 4014 Information Systems Security Officer
  • NSTISSI 4011 Information Systems Security Professional
  • NSTISSI 4015 Systems Certifier

PROFESSIONAL AFFILIATIONS

  • GIAC Advisory Board, ISC2 

Joe also teaches leadership courses for the SANS Institute.

INDUSTRY CONTRIBUTIONS
Joe has presented at security conferences including Check Point CPX, Information Warfare Summit, and BSides.

PASSION FOR SECURITY
Joe’s passion for security started in Incident Response and forensics in the late ‘90s. Since then, he has developed a passion for offensive security, security leadership, and teaching others.

Featured Blogs And Resources

Discover the blogs, analysis, webinars, and podcasts by this team member.

Blog September 21 2023

Basic Authentication Versus CSRF

I was recently involved in an engagement where access was controlled by Basic Authentication. One (1) of the findings I discovered was a Cross-Site Request…

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Blog June 27 2023

Introducing CoWitness: Enhancing Web Application Testing With External Service Interaction

CoWitness improves web application testing by capturing complete DNS and HTTP responses, revealing false positives and hidden vulnerabilities, and helping…

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Webinars February 11 2026

Perspectives on AI in the Cybersecurity Industry in 2026

Join us for this exclusive webinar where our experts will decode the complex relationship between artificial intelligence and cybersecurity in 2026. What will…

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News January 22 2026

News 5 Cleveland - Social Security numbers may have been exposed in data breach connected to local car dealership

A Massillon car dealership reports that an unauthorized actor accessed its network, potentially exposing customer names and Social Security numbers. Advisory…

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Blog January 22 2026

Adventures in Primary Group Behavior, Reporting, and Exploitation

If you’ve administered Active Directory (AD) for any significant time, chances are you’ve come across the primaryGroupID attribute. Originally developed as a…

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Blog January 20 2026

Colonel Clustered: Finding Outliers in Burp Intruder

TL;DR, gimme the goods: https://github.com/hoodoer/ColonelClusteredExtension has been submitted to the Bapp store, awaiting approval.This is a Burp Suite…

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Events January 15 2026

Discord Livestream - Crash Course: Building an Analysis Strategy

In this livestream, we will cover the components of an incident response attack plan from a high level —including scoping, building an analysis strategy,…

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News January 15 2026

WWL First News with Tommy Tucker - What to know about the big Verizon outage on Wednesday

A widespread Verizon outage left many without service, sparking conversation about digital dependence. Advisory Solutions Director Alex Hamerstone joins WWL…

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Blog January 15 2026

CMMC Scope – Understanding the Sprawl

The CMMC program contains complex, and potentially confusing, scope requirements. Contractors that are preparing for a CMMC assessment will need to pay close…

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Webinars January 14 2026

Tips for Incident Response Planning: Prepare Before Crisis Strikes

During our next webinar, our Incident Response experts will cover what organizations should do to prepare so they can respond quickly and be on the way to…

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