To answer your question bitcoin has a blockchain technology that I think cannot be hacked in any way. 
but If you store your bitcoins in a centralized place/ wallet it might get hacked 
but if your wallet is secured properly bitcoin cannot be hacked! 
Hackers use internet to hack some ting and bitcoin is also available on internet so there is a possibility that hackers can hack bitcoin but on other hand I think its also not possible for hackers to do so because bitcoin is now very strong and stable in market then before so bitcoin know very well all its fork that when and how something can happen to it and bitcoin also know how to fight against them so no need to worry about any hackers. but If you store your bitcoins in a centralized place/ wallet it might get hacked but if your wallet is secured properly bitcoin cannot be hacked!