The network system failure that led to the Rogers outage

 https://www.ctvnews.ca/business/what-we-know-about-the-network-system-failure-that-led-to-the-rogers-outage-1.5982790

There should have been much better preparation, just incase things went wrong.

https://thedigitallabyrinth.blogspot.com/search?q=network+system+failure