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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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Events Columbus, OH | May 22 2025

Central Ohio ISSA InfoSec Summit 2025

Come visit us at our booth at COISSA! We are a proud sponsor of this event.

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Webinars April 30 2025

Don't Burn Your Money: Top 5 Ways to Maximize Your Next Red Team

Join Targeted Operations Practice Lead Jason Lang and CTO Justin Elze as they go through the best (and worst) things you can do before, during, and after a red…

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Events TrustedSec HQ | April 29 2025

ISC2 Cleveland Chapter Member Meeting - April 2025

ISC2 Cleveland Chapter April MeetupCome join us for our meetup! The ISC2 Cleveland Chapter is hosting an exciting in-person event for all cybersecurity…

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Events Charlotte, NC | April 27 2025

ILTA EVOLVE 2025

TrustedSec is proud to sponsor ILTA EVOLVE!

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Events April 24 2025

Live Discord Event – JS-Tap Demo and Updates

Join us for an exclusive live Discord session on Thursday, April 24 at 11:00AM ET/10:00AM CT with Principal Security Consultant Drew Kirkpatrick (@Hoodoer)!…

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Blog April 22 2025

How Far Should You Let Penetration Testers Go?

How far should you let penetration testers go once they have a finding or foothold on a penetration test of your organization?As far as they can!The goal is to…

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News April 22 2025

WWL First News - It can be easy to fall victim to an online scam. Here's how to stay safe.

JPSO recently fell victim to a large phishing scam. What IS a phishing scam? Advisory Solutions Director Alex Hamerstone spoke with WWL First News about how…

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Blog April 17 2025

Discovering Your Baud

I'm still pretty new to hardware hacking and find myself going through a lot of media (both text and moving pictures) about various techniques to interact with…

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