It may be secure enough for being on S3, but that's not the whole definition of secure for government / SSNs, where there's (presumably) sheaves of paperwork ex

It may be secure enough for being on S3, but that's not the whole definition of secure for government / SSNs, where there's (presumably) sheaves of paperwork explaining what exactly the storage needs to conform to and, more importantly, what paperwork and procedures need to be in place.