Joseph Thacker
Summary
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SeniorJoseph Thacker is a founder, full-time bug bounty hunter, and security researcher with nine years of experience specializing in application and AI security. He has helped Fortune 500 companies remediate vulnerabilities that could have led to major financial or reputational losses and has submitted or collaborated on over 1,000 disclosures across platforms like HackerOne and Bugcrowd. At rez0corp he combines hands-on offensive testing, AI security assessments, and bespoke AI product development to help organizations harden complex systems. His background spans enterprise security roles and software engineering, giving him a practical edge in finding recurring developer mistakes before attackers do. An experienced podcast host and advisor, he translates technical findings into actionable guidance for engineering and leadership teams.
9 years of coding experience
Github Skills (117)
elasticsearch10
visualizations10
ai10
observability10
github-pages10
elastic10
kibana10
jekyll10
jekyll-theme10
splunk9
monitoring9
golang9
ids9
command-line-interface9
security9
Programming languages (15)
Github contributions (5)
jthack/hydeout
Nov 2018 - Jul 2026
A refreshed version of Hyde for Jekyll 3.x
Contributions:1 review, 1 PR, 568 pushes in 7 years 9 months
jekyll
jthack/ffufai
Aug 2024 - Dec 2025
AI-powered ffuf wrapper
Contributions:1 review, 2 PRs, 14 pushes in 1 year 3 months
ai
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