Before we get deeper into the different techniques and methods used by AWS to encrypt your data, an overview and an understanding of the different key cryptography mechanisms is needed.
Any data that has not been encrypted is known as plaintext, which simply means that the data is in a readable format without the need for any mathematical intervention to alter the data before it can be read. When data is in a state of plaintext, anyone who has read access to the data can access it and view the information contained within it. As long as this data is not sensitive or contains confidential information, then this unencrypted data can remain unencrypted. However, if the data IS sensitive, such as containing customer details and information, then there will be a requirement to protect and secure this data as a priority.
Sensitive data must be encrypted, since...