What Happened to Ethereum?
The fallout began with a hack on the integral component that ran on the original Ethereum. There was a significant amount of money in the DAO; as much as $150 million. Then, the huge hack on the DAO began. So huge, in fact, that $50 million went walking as they cleared a third of the DAO pot out.
Even the latest big hacks on cryptocurrencies haven't been as huge as $50 million.