Dropbox leaves user accounts unlocked for 4 hours
cnn.com
cnn.com
Lots of comments.
Here are some more related stories:
http://news.ycombinator.com/item?id=2674369
http://news.ycombinator.com/item?id=2675328
http://news.ycombinator.com/item?id=2676630
http://news.ycombinator.com/item?id=2678029
http://news.ycombinator.com/item?id=2678163