It's also possible IM serves a scaleable storage system that mingles data across customers. If you S3 they don't isolate clients per physical drive, they store

It's also possible IM serves a scaleable storage system that mingles data across customers. If you S3 they don't isolate clients per physical drive, they store blocks pretty randomly across millions of drives. Plus the case above: OSS could have had another company storing sensitive medical records, and this hands over those drives to a PBS station.