Dropbox messed up OS upgrade, caused two days of downtime
 

Dropbox went down Friday night after some normally routine upgrades went awry. While the company restored most functionality within three hours, problems for some users persisted until Sunday.

The outage was followed by spurious claims from hacking groups that they had successfully infiltrated Dropbox. There was no evidence to support such claims, and Dropbox quickly explained on Friday that the outage was due to an internal problem.

http://arstechnica.com/information-t...s-of-downtime/

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