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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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Webinars November 12 2025

Purple Team Defense Strategies

Join Senior Security Consultant Sarah Norris and Security Consultant Zach Bevilacqua for a deep dive into how to create action items for a robust defense…

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Events TrustedSec HQ | October 28 2025

ISC2 Cleveland Chapter Member Meeting - October 2025

ISC2 Cleveland Chapter October 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 October 28 2025

Hack-cessibility: When DLL Hijacks Meet Windows Helpers

In preparation for a talk, Jason Lang (@curi0usJack) and I were doing at MCTTP about mining TTPs from VX-underground, we both ended up doing research based on…

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Events Lake Buena Vista, FL | October 27 2025

InfoSecWorld 2025

TrustedSec is proud to sponsor and hold a workshop at this year's InfoSec World in Lake Buena Vista, Florida. Make sure to visit our booth if you'll be there!

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Training Resources October 25 2025

InfoSec World Workshop - Adversary Tactics and Threat Hunting

This immersive workshop will train you to simulate attacks, hunt threats, and build detections using manual, automated, and AI-driven methods across network…

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Podcasts October 24 2025

Security Noise - CON Men: Wild West Hackin' Fest + GrrCON

On this episode of Security Noise, we are discussing two of our favorite cybersecurity conferences Wild West Hackin' Fest and GrrCON! Our team presented at…

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Events October 23 2025

Discord Livestream - Titanis Tool Demo

Join us on Discord for a tool demo of Titanis! Titanis is a library of protocol implementations and command line utilities, written in C#, for interacting with…

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News October 23 2025

Nasdaq TradeTalks - How AI Is Changing the Underground Cybercrime Economy

The cyber world is seeing a new arms race as AI powers the latest wave of Crimeware-as-a-Service. Director of Security Intelligence Carlos Perez stresses that…

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Events Provo, Utah | October 21 2025

SAINTCON 2025

We are proud to sponsor and have a booth at this year's SAINTCON!

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