Casey Ellis
Principal at Bugcrowd
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.
11 years of coding experience
18 years of employment as a software developer
Github Skills (43)
security-txt10
infosec10
vulnerability10
security10
contact-list10
disclosure10
seal10
external10
database10
cybersecurity9
hacking9
ai9
boilerplate9
static-site8
scraper8
Programming languages (10)
Github contributions (5)
disclose/dioseal
Jun 2020 - Aug 2021
The Disclose.io Status best practice seal.
Contributions:12 commits, 4 PRs, 9 pushes in 1 year 1 month
best-practicestatussealdisclosevulnerability-disclosure
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, 44 PRs in 1 year 6 months
securityvulnerability
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.