The Ethereum Cooperative, the foundation responsible for the development of Ethereum Classic ($ETC), has brought on Ethereum ($ETH) and former ConsenSys developer Bob Summerwill as executive director. Summerwill is tasked with community building and ongoing technological upgrades, such as the PoA testnet and peaceBridge, the latter allowing movement between the ETH and ETC ecosystems. Summerwill's hire comes in the wake of a 51% attack which cost the network roughly $1.1 million.