https://blog.coinbase.com/update-for-customers-with-bitcoin-stored-on-coinbase-904dea08ac5f https://blog.coinbase.com/update-for-customers-with-bitcoin-... It

https://blog.coinbase.com/update-for-customers-with-bitcoin-stored-on-coinbase-904dea08ac5f https://blog.coinbase.com/update-for-customers-with-bitcoin-... It looks like if there is a hardfork then Coinbase will just keep your coins on the chain that they don't want to continue supporting. I would move coins to a wallet that you control (preferably something or somewhere not network accessible) beforehand so that you keep your coins on both chains.