Encrypting your data and metadata in Glue Data Catalog
There are many ways a malicious person may be able to get access to your data. They may be able to listen on a network for traffic between two applications. They may be able to pull a hard drive from a machine, server, or dumpster. They may be able to gain access to an account that has access to the data they need. Regardless of how the bad actor obtains your data, you do not want them to read the data, and data encryption is how that is done. Data encryption takes your data, encodes it using an encryption key, and makes it impossible to read without the decryption key.
Encryption algorithms where the encryption key and decryption keys are the same are called symmetric encryption. Algorithms in which the keys are different are called asymmetric encryption.
Let's look at how we can encrypt data on S3.
Encrypting your data
When your data is persisted somewhere, it should be encrypted. All the data that Athena...
