I love the concept of Bitcoin. I believe the Internet will redefine currency as we know it. I hope this helps the Bitcoin community to develop a currency that's really resilient to attacks.
But, is it possible?
Bitcoin has never been hacked from it's nine (9) years of existence. The Block Chain technology is impenetrible. This is actually one of the best high lights about bitcoin- It is very secured. Usually the hacking happens in the 2nd networks/party or when one goes to other transaction of transfering funds in the investors wallet.
So It is very important to be extra careful in doing transactions of your wallets because it is where the the hacking happens usually. I suggest one must go to legit networks or 2nd parties in making of transactions of your wallets.
Well, generally unless the entire technology will be gone then there is nothing to be worry about of his/her bitcoin investment.