[fpoling]

There is a contractual obligation on Amazon side. If they kill the account in violation of the contract, the court will force them to pay heavy damages.

Now, one can argue that courts would take time and money and a company may not afford such risk even if it is theoretical. In this case if data is that important it is stupid to keep them at AWS.

But then just write the data to tapes and store in a bank cell or whatever.