I wrote about the UniSuper issue at the time: https://danielcompton.net/google-cloud-unisuper. It was a pretty nasty bug where their VMWare environment was created with a one-year expiry date, but was one "resource" from the perspective of Google Cloud.
"UniSuper’s production Google Cloud VMware Engine (GCVE) private cloud was automatically deleted one year after it’s creation due to a misconfiguration in how it was created. When it was created, there was a bug in the creation script which passed a null value."
That's pretty amazing. Not due to a cascading failure from someone changing a config deep inside of a system that caused a bunch of unintended effects, just someone who messed up writing a shell script?
Creating stuff with 1yr (implicit) expiry by default is just a delayed footgun tbh