[amichal]

Pure speculation but the semantics of and usual purpose of “legal hold” strongly imply that keeping the data even with an unpaid bill would be the correct implementation. Even at much smaller scales contracts state fixed data retention or escrow schemes beyond the end of the contract precisely to make legal discovery easier

Edit: went looking for some evidence that supported this (at least in the stricter compliance mode) but found none in the docs. I found a 3rd party audit report supporting the use of this mode for SEC/FINRA etc regulated data and it says the entity is still responsible for maintaining its account in good standing but goes into no further details on what AWS does if you don’t.