[andirk]

From a Coinbase email:

"This means if there are two separate digital currencies – bitcoin (BTC) and bitcoin cash (BCC) – customers with Bitcoin stored on Coinbase will only have access to the current version of bitcoin we support (BTC). Customers will not have access to, or be able to withdraw, bitcoin cash (BCC).

Customers who wish to access both bitcoin (BTC) and bitcoin cash (BCC) need to withdraw bitcoin stored on Coinbase before 11.59 pm PT July 31, 2017. If you do not wish to access bitcoin cash (BCC) then no action is required."