Think about who would be doing it and why. It isn't some small group, because they would only hit one or two exchanges.
It is the bankers' behind-the-scenes hackers, or it is the NSA, or CIA, or FBI, or their counterparts in the various governments of the world, like the group that the KGB turned into, or MI6, or you name it.
Bitcoin signals the end of the fiat currencies of the world. Those who are in power don't like that idea. the only way they can legally shut down Bitcoin is to shut down all Internet communications they have so carefully built so that they can rape the people.
I'm not a techie, but if I were, I would be advancing all the different ways that I could think of for maintaining and growing public communications beyond the Internet. I would be working to develop an independent communication grid that is entirely decentralized, yet worldwide, just like Bitcoin is.
