I was hoping to get some clarification. We are using an M2 cluster of MongoDb Atlas. I’ve read this link which states Atlas encrypts all cluster storage and snapshot volumes, ensuring the security of all cluster data at rest.
My understanding if we want to encrypt the data with our key then would need to upgrade to M10.
On the assumption our M2 cluster is encrypted I asked MongoDb chat support on what encryption type is used (eg 256 encryption). I was surprisingly given the response that the M2 cluster was not encrypted (See snapshot below).
Is this correct? It seems what they have stated is a contradiction? Am I able to get clarification that our M2 cluster is encrypted at REST? In addition what encryption type is used? And finally as a newb what is the key difference between encrypting the whole disk vs us providing our key? Many thanks in advance.