casey john ellis

founder of bugcrowd & disclose.io · hacker, entrepreneur, advisor, and investor · husband & dad x2

⌖ san francisco bay area · often in sydney

cje.ioi write stuff here↗tall poppy groupi invest, advise, consult, and incubate from here↗bugcrowdi founded this↗disclose.ioi'm mostly working on this↗security research legal defense fundi'm on the board here↗

other stuff

merchstickers, shirts, and questionable ideas↗digital twinthis is my delphi digital twin — expect weirdness↗slides and talksdecks from conferences and keynotes↗

get in touch

book timegrab some time or book a consultation↗commentary, interviews & speakingpress@cje.io↗pitch your startupventure@cje.io↗everything elsehello@cje.io↗

projects and tools

whereis.coa location flare for the social and agentic web↗tongacon.comthe thing that happens before the thing that happens↗birbs-archive.cje.ioa house finch nest, day by day↗qr.cje.ioyour linkedin qr on your lock screen↗