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Costa Petros

Senior Security Consultant

EXPERIENCE
Costa Petros began his IT career by covering many facets from the ground up. While in college studying construction management, Costa’s ability to communicate, problem-solve, and collaborate awarded him his first job in IT as a dial-up Internet technical support representative.

As his career progressed, he worked his way up through technical and operational support, PC and IT infrastructure administration, compliance, and consulting roles. Costa held a position as an IT administrator at a branch of a publicly traded company that focused on reselling both Cisco and security services. Costa’s communication skills, technical aptitude, and ‘security-first’ approach opened the door to becoming a penetration tester consultant. As a penetration tester at TrustedSec, Costa specializes in social engineering and physical security assessments. He approaches his work with a ‘hope for the best, prepare for the worst’ mentality.

EDUCATION & CERTIFICATIONS

  • GIAC Penetration Tester (GPEN)
  • Microsoft Certified Professional (MCP)
  • VMware VCA-DCV

PROFESSIONAL AFFILIATIONS

  • InfraGard Northern Ohio Chapter

INDUSTRY CONTRIBUTIONS

  • DerbyCon staff and security, 2017-19

PASSION FOR SECURITY
Costa’s passion for security was evoked at a young age. Growing up in the family takeout business, Costa was taught to protect what you have. This meant locking up at all hours of the day at the family business and at home. As a kid, running in and out of the house was frustrating when he found the doors locked. It didn’t take long for him to find other ways into the house, sometimes climbing onto the roof to bypass a window lock. A curious boy, Costa constantly took apart household items in order to fix, understand, and improve them. This curiosity, his ‘prepare for the worst’ mentality, and ‘protect what you have’ focus drive him to understand and further advance secure implementations.

Featured Blogs And Resources

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

Blog April 19 2018

It Was the "Summerof2018" - Password Auditing for Windows Administrators

You can audit your Windows domain to identify weak passwords, such as Summer2018 or , and mitigate password spraying by extracting and cracking NTLM hashes…

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Events TrustedSec HQ | February 24 2026

ISC2 Cleveland Chapter Member Meeting - February 2026

ISC2 Cleveland Chapter February 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 February 19 2026

Discord Livestream - Tales from the Trenches: Securing Active Directory

Join us for this live Discord session with Identity Security Architect Sean Metcalf as he covers the most common Active Directory security issues and how to…

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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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Events Denver, Colorado | February 11 2026

Wild West Hackin' Fest @ Mile High 2026

We are excited to be a sponsor at WWHF @ Mile High this year!

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Blog February 10 2026

Securing Entra ID Administration: Tier 0

Entra ID (formerly Azure AD) is the core service upon which Microsoft 365 applications rely for directory and authentication services. This makes Entra ID…

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News February 10 2026

Fox 26 Houston - Love or Lure? Spotting Romance Scams

Carlos Perez, Director of Security Intelligence, discusses the Israeli government's use of modified exploding devices in Lebanon.

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Podcasts February 09 2026

Security Noise - LLM = Love Language Model?!

In this episode of Security Noise podcast, we are discussing the crossover of AI into our romantic lives. How are LLMs used to social engineer or catfish…

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News February 05 2026

CNN - Guthrie Family Releases New Video Amid Search for Mother

David Kennedy, TrustedSec Founder and CEO, joins CNN to discuss the challenges of finding the kidnapper of Today show host Savannah Guthrie's mother, using…

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Blog February 05 2026

Keys to JWT Assessments - From a Cheat Sheet to a Deep Dive

The Cheat Sheet section is for quick reference.The Learn section is for those who have never touched the topic before.The Implement section is for more…

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