We need an S3 bucket. The bucket should be in the same region in which we configure Macie. I have created a bucket named aws-sec-cb-macie-demo in the us-east-1 region. 

Our S3 bucket should have the following fake sensitive data:

• Main.java, which is a Java code file
• for-macie-demo-only-do-not-use.pem, which is a key-value pair private file created for this demo

These two files are available with the code files. You may add additional files with fake sensitive data and experiment.