Surely you realised that is the case with a point-in-time backup? If you absolutely cannot lose data then as others have said, Multi AZ is required, or, at the

Surely you realised that is the case with a point-in-time backup? If you absolutely cannot lose data then as others have said, Multi AZ is required, or, at the very least, have a transaction log that you can replay (once again, hosted somewhere else).