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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 | March 31 2026

ISC2 Cleveland Chapter Member Meeting - March 2026

ISC2 Cleveland Chapter March 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 March 19 2026

Discord Livestream - AMA: Incident Response

Ask us anything about incident response! Join us for an exclusive Discord Livestream with IR Practice Lead Ryan Macfarlane.

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Webinars March 18 2026

Copilot Security: What to Know Before You Go

In this webinar, our experts will walk you through the critical groundwork needed before deploying Microsoft 365 Copilot. Learn how you can best prepare for…

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Webinars March 04 2026

CMMC Challenges and Misunderstandings

During our next webinar, our experts will cover CMMC misunderstandings that are creating the most problems for defense contractors and subcontractors, from CUI…

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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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Blog February 24 2026

Building a Detection Foundation: Part 1 - The Single-Source Problem

The Uncomfortable Truth About Your Telemetry Let me start with an observation that might hit close to home. In my years working Incident Response cases and…

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Podcasts February 23 2026

Security Noise - Ten Years: A Decade of Doing This

David Kennedy and Kelsey Segrue join us to discuss ten years of our podcast! We discuss how the cybersecurity space has evolved over the years and social media…

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News February 20 2026

NewsNation - "Signal Sniffer" Tracks Pacemaker Signal

Authorities are employing multiple strategies to profile the kidnapper of Nancy Guthrie. TrustedSec Founder and CEO David Kennedy joined NewsNation to discuss…

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News February 20 2026

WWL First News with Tommy Tucker - Skimming, shimming, and how to avoid getting scammed

What’s the real threat behind RFID scanners and skimmers? Advisory Solutions Director Alex Hamerstone joins WWL First News to discuss the mechanics of skimming…

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