Casey Ellis

Casey Ellis

Cybersecurity founder. Bugcrowd founder.
#35243717 followers0 following
#13,005Last month
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>10,000All time
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About

Founder, hacker, and builder working at the intersection of cybersecurity and AI. I started Bugcrowd back in 2012 to pioneer crowdsourced security and bring hackers and organizations together to make the internet safer. Today I'm Co-Founder & President of disclose.io (open-source tools to make vulnerability disclosure safe, simple, and standardized), and Principal at Tall Poppy Group, a startup skunkworks focused on cybersecurity, AI, security research, and emerging threats. I love shipping early-stage ideas, backing founders as an angel investor, and building tools and communities for security researchers. Always keen to connect with makers building in security, AI, and developer tooling. Let's hack the planet.

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Maker History

  • Lookup by disclose.io
    Lookup by disclose.ioFind who owns any internet asset and who to report bugs to
    Jul 2026
    • 🎉
    Joined Product HuntJuly 2nd, 2021

Forums

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2mo ago

LinkedIn QR Wallpaper - Your LinkedIn QR, living on your lock screen. Scan. Done.

"Let's connect on LinkedIn!" — then the fumble: unlock, open app, dig three taps deep for the QR. Moment gone. qr.cje.io kills the fumble. Type your username → get a gorgeous custom wallpaper with your LinkedIn QR baked right in. Flash your lock screen, they scan, connected. No app. No unlock. No friction. Free, no signup, 6 themes, ~5 sec. Built for hustlers: demo days, conferences, pitches, parties. Networking at the speed of a glance.
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2mo ago

Lookup by disclose.io - Find who owns any internet asset and who to report bugs to

Find who owns any internet asset and the right security & disclosure contact — domains, IPs, ASNs, packages, repos, apps & more. Free, from disclose.io.
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