Casey Ellis
Founder at Black Hat
San Francisco, California, United States
Summary
🤩
RockstarCasey Ellis is a cybersecurity entrepreneur and principal with over two decades of experience who founded Bugcrowd and pioneered crowdsourced security-as-a-service, launching the first public bug bounty and vulnerability disclosure programs. He has scaled programs and communities globally—helping grow Bugcrowd’s researcher base into the hundreds of thousands and steering strategic fundraising and government engagements that validated crowdsourced security at the federal level. Casey blends offensive security expertise, product invention, and policy influence, having advised DoD, DHS/CISA, and contributed to landmark legal outcomes protecting good-faith researchers. He now leads Tall Poppy Group, co-founded disclose.io to standardize safe vulnerability disclosure, and serves on multiple content and policy boards shaping the future of AI and offensive security. Based in San Francisco but rooted in the Aussie hacker community, he combines hacker mentorship with board-level strategy and active angel investing in AI-security startups. A practical troubleshooter turned industry architect, he’s equally comfortable building platforms, arguing policy, and mentoring the next generation of security researchers.
10 years of coding experience
18 years of employment as a software developer
Github Skills (61)
database10
security-txt10
vulnerability10
security10
disclosure10
internet10
pentesting10
vulnerabilities10
lists9
cybersecurity9
points9
seal9
boilerplate9
external9
data-tools8
Programming languages (8)
Github contributions (5)
disclose/bug-bounty-platforms
Jul 2021 - Jan 2023
A community-powered collection of all known bug bounty platforms, vulnerability disclosure platforms, and crowdsourced security platforms currently active on the Internet.
Contributions:13 reviews, 32 commits, 39 PRs in 1 year 6 months
security-toolsvulnerability-disclosurebugbountysecurityplatforms
disclose/diodb
May 2018 - Nov 2022
Open-source vulnerability disclosure and bug bounty program database
Contributions:43 reviews, 177 commits, 144 PRs in 4 years 6 months
legalsafe-harbor-frameworksecurity-researchvulnerability-disclosuresecurity
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.