So if you can't trust the company offering the service, you shouldn't do business with them. It's the same with food and food supplies: if they can't be trusted to serve/sell you stuff that doesn't make you ill, don't do business with them. Very simple.
I literally have an IMAP box and nothing else.
Currently digging a financial company out of a royal mess of 20 years of bad technical leadership leading to sprawling infrastructure and cloud dependencies.
In your experience, what are the "worst" cloud dependencies? I'd imagine SalesForce and AWS would have very different impact?
Salesforce is the root of all evil. Once you're in the ecosystem, you're stuffed. You know it's bad when the entire business team start running round clucking when the EMEA salesforce instance goes down hard...
AWS is fine. Most of the platform's concepts have real world parallels for example.