[Scythian]

"Singtel, the Singaporean telecommunications conglomerate that owns Optus, said on Thursday a routine upgrade was not the cause of last Wednesday’s daylong outage that cut off internet and mobile access for about 10.2 million customers.

“We are aware that Optus experienced a network outage after the upgrade when a significant increase in [internet] addresses being propagated through their network triggered preset failsafes. However, the upgrade was not the root cause,” a Singtel spokesman"
https://www.news.com.au/technology/onlin...0spokesman