On August 1st, a new coin was created by forking the bitcoin blockchain called Bitcoin Cash or Bcash(BCH)
Everyone who had bitcoin before the split August 1st will have an equivalent amount of Bcash. In order to split your Bcash from your Bitcoin you should follow this great guide here.
Some exchanges have not credited BCash and plan to in the future so you may have to wait.
IF you need help with this, you can message me on telegram @therealninza or email me firstname.lastname@example.org and I will do my best to assist you.
If you want to keep your Bcash then you can simply do nothing for the time being.
The coin is strong.