Zooko Wilcox-O'Hearn (born Bryce Wilcox; 13 May 1974 in Phoenix, Arizona), is an American Colorado-based computer security specialist, self-proclaimed cypherpunk, and ex-CEO of the Electric Coin Company (ECC), a for-profit company leading the development of Zcash.

[1] He is known for the Tahoe Least-Authority File Store (or Tahoe-LAFS), a secure, decentralized, fault-tolerant filesystem[2][3] released under GPL and the TGPPL licenses.

[4] Wilcox-O'Hearn is the designer of multiple network protocols that incorporate concepts such as self-contained economies and secure reputation systems.

[7][8] Zooko's triangle is named after Wilcox-O'Hearn, who described the schema that relates three desirable properties of identifiers in 2001.

[9] Wilcox-O'Hearn was founder and CEO of Least Authority Enterprises in Boulder, Colorado[1] where he is now an advisor.