1. Create a KMS Key: The first step is to create a KMS key in the AWS Management Console. This key will be used to encrypt and decrypt histological data. 2. Set Permissions: Configure IAM policies to grant the necessary permissions to users and applications that need to use the KMS key. 3. Encrypt Data: Use the created KMS key to encrypt histological data before storing it in AWS services like S3 or RDS. 4. Monitor and Audit: Regularly monitor key usage and review audit logs to ensure compliance with data security policies.