Marshall Hallenbeck
Lead Penetration Tester
United States
Summary
🤩
Rockstar🎓
Top SchoolMarshall Hallenbeck is a Lead Penetration Tester with 12 years of offensive security experience, currently driving red-team engagements and purple-team initiatives at AZ Cyber Security Solutions and previously at Datto. He builds and breaks applications for the Global Collegiate Penetration Testing Competition, blending practical attack craft with tooling and app development to train the next generation of testers. Marshall has deep experience in threat modeling, code review, security automation, and creating internal tools to improve vulnerability management and developer security practices. Known for a hands-on, curious approach—he literally designs the targets students attack—he balances mentorship, competition leadership, and enterprise-level assessments to improve defenders’ posture.
12 years of coding experience
10 years of employment as a software developer
Bachelor of Science Information Security and Forensics Concentration in Communications, Bachelor of Science Information Security and Forensics Concentration in Communications at Rochester Institute of TechnologyAssociate in Science Computer Information Systems Computer and Network Security, Associate in Science Computer Information Systems Computer and Network Security at Hudson Valley Community College
American Sign Language
Stackoverflow
1reputation
0reached
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Github Skills (200)
adversarial-attacks10
penetration-testing10
python10
wmi10
testing10
windows10
recovery10
security10
msrpc10
impacket10
netbios10
infosec10
cybersecurity10
aix10
active-directory10
Programming languages (13)
Github contributions (5)
Marshall-Hallenbeck/dot_files
Oct 2019 - Jan 2025
Contributions:46 pushes, 3 branches in 5 years 3 months
Marshall-Hallenbeck/red_team_attack_lab
Aug 2021 - Nov 2022
Red Team Attack Lab for TTP testing & research
Contributions:128 commits, 7 PRs, 106 pushes in 1 year 3 months
security-toolsvagrantsecurityansiblered-team
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