Unsupported Digital Currencies
Because of the irreversible nature of digital currencies, the security and integrity of our private keys is of the utmost importance to us. Consequently, private keys associated with a specific address are virtually inaccessible outside of extremely limited circumstances.
As a result, Coinbase is incompatible with any digital currencies or tokens other than those found here.
Any unsupported digital currencies or tokens sent to a Coinbase address will effectively be lost.
Initial Coin Offerings (ICOs)
Additionally, you should not send any digital currency to an ICO address from your Coinbase account. Most ICOs issue their tokens to the same address that funds were sent from. Since Coinbase does not support those tokens, we are not able to credit an account with or return tokens sent to a Coinbase address, for the same reasons as outlined above.
If you would like to participate in an ICO, you will first need to send your digital currency to an external address which you control the private keys to, in order to avoid loss of the digital currency.