I'm wondering if there had been negotiations that had previously fallen apart over the price. After the DDoS caused Dyn's customers to flee in droves (my own employer included), suddenly Oracle's last best offer became much more appealing. Something very similar happened at a company I used to work for - we had been talking to a potential acquisition but we were still far apart on price. That company's largest customer files Chapter 11, and *bam* they called back and agreed to our last offer within days. Deal announced within a week of that filing.