On Friday evening we began a routine server upgrade. Unfortunately, a bug installed this upgrade on several active servers, which brought down the entire service. Your files were always safe, and despite some reports, no hacking or DDOS attack was involved.
While we restored most functionality three hours later, some users continued experiencing issues throughout the weekend across dropbox.com, our desktop client, and our mobile apps. Dropbox should now be up and running for all of you, but we’re working through a few last issues with the Dropbox photos tab. [UPDATE: The photos tab is now back. Thanks all for your patience!]
We know that many of you rely on Dropbox every day — we pride ourselves on reliability, and any downtime is unacceptable. In response, we’re currently building more tools and checks to make sure this doesn’t happen again. You can visit our tech blog to learn about this effort and read a more detailed explanation of events.
We’re sorry for the trouble this caused, and we thank you for your patience and support.
Aditya VP of Engineering