Ethereum developer Consensys has filed a lawsuit against the U.S. Securities and Exchange Commission, striking back against what the company calls an “unlawful seizure of authority” over Ethereum by the federal regulator.The company wants a federal court to declare that ETH (ETH) is not a security, any investigation of ConsenSys based on the idea that ETH is a security "would violate" the company's fifth amendment rights and the Administrative Procedures Act, that MetaMask is not a broker under ...