[OmegaPG]

It is not in AWS interest to give too many options to their users to restrict the usage and expenditure.

AWS can certainly do a better job in telling me how to optimise my AWS hardware and expenses

In OPs case, if you search in Google, you will find this AWS hacking happen a lot with many users including me and AWS support was extremely kind to me to give additional credits to offset that expense.

[mattmanser]

If AWS hacking happens a lot it sounds like a problem for AWS to deal with by default, doesn't it? Perhaps even be forced to by law?

It would be trivial for AWS to force you to setup spending limits when setting up an account, one for an alert, one for a hard lock.

AWS billing is terrible too, even now I'm getting charged a few dollars on my personal account for who knows what, I've cancelled everything I can find. It's like whack-a-mole everytime you spin something up.

In the end that's basically theft by AWS but you can't make too much noise or your account gets cancelled.