Hinman specifically said that bitcoin is not a security because it is decentralized: there is no central party whose efforts are a key determining factor in the enterprise. In addition, ether is also not a security because the ethereum network is also decentralized.
Hinman did not address the securities status of other cryptocurrencies, notably ripple (XRP), which is the subject of a lawsuit alleging that it is a security, noting only that, "Over time, there may be other sufficiently decentralized networks and systems where regulating the tokens or coins that function on them as securities may not be required.