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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 Cincinnati, OH | November 13 2026

Queen City Conference

TrustedSec is proud to sponsor and have a booth at this year's Queen City Conference!

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News November 05 2026

WWL First News with Tommy Tucker - What are smart device security risks?

Hackers recently targeted fridges and freezers at grocery stores in Europe, which has people asking about the smart devices in their own homes. Advisory…

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Webinars November 04 2026

Leash Your LLM: Rolling Out Claude and Copilot Securely

Join our experts as they break down the essential security considerations for Claude Desktop and Microsoft Copilot and how to safely rollout desktop AI use in…

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Events Columbus, OH | November 04 2026

BSides Columbus 2026

Enroll in our pre-conference training and don't miss the keynote by Founder & CEO David Kennedy at BSides Columbus!

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Blog November 03 2026

The Quiet Phase: Why Active Directory Group Enumeration Deserves Your Attention

Most teams watch the door; the window gets less attention. In this blog, we cover how auditing Active Directory group enumeration surfaces attacker…

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News November 02 2026

News 5 Cleveland - Cleveland warns of scammers posing as city employees, demanding thousands

When a scam asks for far too much, that’s often how it gets caught. Advisory Solutions Director Alex Hamerstone joins News 5 Cleveland to discuss the City of…

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Podcasts October 28 2026

Three Flags and a Funeral: Are CTFs Dead?

Is AI the end of CTFs, or just their next evolution? AI is making its way into every corner of technology and CTFs are no exception, but what does this mean…

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Blog October 27 2026

What is CUI? A Contractor’s Perspective

Three questions every government contractor should be able to answer about CUI—how to identify it, when to mark it, and how to handle it correctly. In this…

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Events Provo, Utah | October 27 2026

SAINTCON 2026

We're showing up as a proud sponsor at this year's SAINTCON, come find us at our booth!

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