[fluuuhi]

My main concern is, that i can't define an upper limit. My billing alert is nice and im aware of it, but it doesn't help you if someone takes over your account, mines bitcoins on expensive machines and a day later you read your email.

[ak217]

AWS refunds you when that happens.

The fundamental issue with setting a limit is it's technically infeasible to decide what to do when it's exceeded. They have no way of knowing what assets to terminate. The way to avoid what you describe is to shut off access to APIs that you don't want to use, and keep your credentials safe.

[pbalau]

AWS has budgets that do exactly what you want. For the "cost budget": "Monitor your costs against a specified dollar amount and receive alerts when your user-defined thresholds are met."