"... growing whisper within the security industry in Melbourne that there weak security might have been breached from China. ..." ~ http://news.ycombinator.com/item?id=4605335
Any idea what type of systems they are running?
Any idea what type of systems they are running?
Given the time frame of when it happened it's more likely a change that has been borked in some way with difficulties in rolling back.
Finding further information about it: looks like a core switch died with the backup not kicking in. 12 hours to work around is a but much though.