Ned, thank you for 1) disclosing the nature of the issue, 2) promptly communicating and providing regular updates, 3) disclosing your defense strategy and reiterating that Steemit will maintain a zero-tolerance policy for criminal activity on a decentralization platform (this is absolutely critical for the future sustainability and growth of the Steemit ecosystem, especially in light of the recent dark web and related crypto markets; brand equity needs to be cared for) and 4) for ensuring that a more secure system is in production within 24 hours and for immediately containing the threat while doing your best to minimize impact to thousands of other users; the fact that the hacker(s) could only access 260 accounts is indicative of a unique technology structure that you have all implemented in Steemit; bullet proof!
I wrote a blog post on how timely and professional the entire Steemit team have been with its first hack; https://steemit.com/steemit/@bismail/what-happens-now-with-steemit-keep-or-sell-steem-my-thoughts