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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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News December 12 2025

Security Advisory: React2Shell (CVE-2025-55182) - Critical RCE Vulnerability

A critical vulnerability affecting React Server Components (RSC) is being actively exploited. Here's what to look for and what to do next.

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Blog December 09 2025

Holy Shuck! Weaponizing NTLM Hashes as a Wordlist

Password reuse is common in Active Directory (AD). From an attacker’s perspective, it is a reliable path to lateral movement or privilege escalation. Most IT…

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Podcasts December 05 2025

Security Noise - Hacker Family Feud

Our security experts compete to see which team can guess the most popular answers to cybersecurity industry questions on this episode of the TrustedSec…

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Events December 04 2025

Research on Windows Accessibility: Narrator.exe

Join us for our next Discord Livestream "Research on Windows Accessibility: Narrator.exe" on December 4 at 11:00AM ET! During this exclusive session, Principal…

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Blog December 04 2025

What is a TrustedSec Program Maturity Assessment (PMA)?

The TrustedSec PMA is a tactical approach to evaluating the components, efficiency, and overall maturity of an organization’s Information Security…

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Webinars December 03 2025

NIST CSF 2.0 - From Compliance to Confidence

During our next webinar, our experts will cover the latest evolution of the National Institute of Standards and Technology Cybersecurity Framework (NIST CSF),…

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News December 01 2025

KTVU Fox 2 San Francisco - Too good to be true? Cyber Monday Warning

Protect your purchases this Cyber Monday! Director of Advisory Services Chris Camejo speaks with KTVU Fox 2 to share essential tips on how to safeguard your…

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News November 25 2025

Schwab Network | Morning Movers - Zscaler (ZS) Earnings Preview and Cybersecurity Outlook

Advisory Solutions Director Alex Hamerstone joins Morning Movers to preview Zscaler (ZS) earnings and discuss the overall cybersecurity software space. He…

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Events November 20 2025

Discord Livestream: Hunting Deserialization Vulnerabilities With Claude

Join us for an exclusive live Discord presentation and Q&A with Senior Security Consultant James Williams.

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