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?
Programmers can always enhance the system and tighten up the security but there will be always a way for a smart hacker to penetrate the application or website. Maybe we can expect a lot more about the stronger security in our wallets and other coin holders but still we should always expect that it is penetrateable since it is working online.