And this goes for all of commerce, which is an important realization: security is not an all-or-nothing proposition, it is an economic affair. Whatever you wish to secure, you can expect to expend a reasonably constant fraction of that on the act of securing it. So if you wish to secure $100M you will have to do a much better job than if you wish to secure $10M or $1M, just like you're going to spend more money on the lock for a $1k bike than a $25 junker.
When DOA ended up being over-subscribed they should have immediately yanked the emergency brake because whatever plans they had would end up being moot by virtue of storing more money in the bucket than they originally planned.
Their security measures would by definition not have been up to the task because they had planned to secure a much smaller amount. Either that or they were ridiculously over-confident.
