There is a hard fork coming up in the bitcoin blockchain on August 1st 2017. People holding coins privately, and in control of their own private keys are safe and will retain the full value on both the new bitcoincash (BCC) and the old bitcoin classic (BTC) blockchains. Those who trust their coins to online wallets such as coinbase are at their mercy and will NOT receive BCC coins.
Here is some information that will help you protect the value of your bitcoins: Bitcoin Poker Players Prepare for BTC Hard Fork | Professional RakeBack