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Costa Petros

Senior Security Consultant

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.


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


  • InfraGard Northern Ohio Chapter


  • DerbyCon staff and security, 2017-19

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

IT departments around the globe spend countless hours and money ensuring that their company’s data and infrastructure are properly secured. Startup company?…

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Training Resources November 07 2024

Actionable Purple Team Simulation Online Training (November 7-8)

Learn how to create specific detections to identify early Indicators of Compromise (IOCs) in our online course. Designed for those looking to improve their…

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Training Resources August 03 2024

Black Hat USA Training - Applied Threat Hunting and Detection Engineering

Registration is now open for our Black Hat training on August 3-6, 2024

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Events TrustedSec HQ | June 25 2024

ISC2 Cleveland Chapter Member Meeting June 2024

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

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Webinars June 19 2024

Ask Me Anything: Software Security

While many are confident in the security of their software, absolute protection is never guaranteed. Attackers' toolkits are growing, and those who don't keep…

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Blog June 18 2024

Tips and Tricks on Creating Your First Conference Talk

Have you ever attended a security conference (or any conference for that matter) and thought about giving a presentation yourself, but don't know where to…

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News June 12 2024 - Ransomware attacks cost cities millions. Will Cleveland face the same fate?

During the first eight months of last year alone, ransomware attacks on local and state governments in the U.S. grew by 51% over the same period in 2022.…

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News June 12 2024

WKYC - Cleveland City Hall to Reopen Amid Cyber Investigation

Cleveland City Hall is set to reopen after shutting its doors for two days after a cyber incident. Advisory Solutions Director Alex Hamerstone spoke with WKYC…

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News June 11 2024

Government Technology - Investigation Underway After Cleveland ‘Cyber Incident’

Cleveland officials aren’t saying much about a “cyber incident” that closed City Hall on Monday, leaving residents in the dark about what sensitive information…

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Blog June 11 2024

Hands On with Chip Off Non-Volatile Memory

1.1 Introduction - Why We're HereWelcome to a deep dive into desoldering Non-Volatile storage chips! At the time of publishing, this is a recreation of my own…

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