“While UniSuper normally has duplication in place in two geographies, to ensure that if one service goes down or is lost then it can be easily restored, because the fund’s cloud subscription was deleted, it caused the deletion across both geographies.”
A provisioning mistake at Google Cloud deleted the private cloud subscription of a pension fund managing about $125bn, and 620,000 members lost account access for over a week. The two-region redundancy was worthless because one deletion took out both regions. UniSuper only came back because it kept backups with another provider. Google calls it “one-of-a-kind.” Your cloud provider is a single point of failure.