Well that's not good. 

Ethereum is more than just a cryptocurrency... it's a distributed software model, with lots of interesting possible applications.  Including, some of predicted, virtual distributed corporations that basically *are* software... or at least, driven by Ethereum-run software as a sort of "constitution"

So then it doesn't surprise you that a hacker could steal millions?

Distributed corporations sounds really interesting.

And more challenging to keep honest. 

Adam, I am not surprised because computer systems are difficult to secure, especially complex new ones.  But as these these go, it's a notable compromise!

Geege, is your name pronounced with one syllable or two?  I don't know much about the topic but check out https://en.wikipedia.org/wiki/Decentralized_autonomous_organization

Agreed that it's a notable compromise.