CosmWasm was originally
prototyped by Team Gaians at the
Berlin Hackatom 2019. In particular,
Aaron Craelius, CTO of Regen Network, designed the architecture with respect to avoiding reentrancy attacks such as those exploited in the now-famous DAO hack,
Jehan Tremback, founder of Althea Network, led the implementation in Rust, and
Ethan Frey, founder of Confio, led the golang piece of the implementation. After the concept was successfully prototyped, the
Interchain Foundation provided a grant to
Confio to implement a production-ready implementation.