Data at Rest: Encryption is crucial. I would use encryption algorithms and technologies like AES to encrypt stored data. In AWS, for example, services like AWS Key Management Service (KMS) allow for robust key management.
Data in Transit: Secure Sockets Layer (SSL) or Transport Layer Security (TLS) protocols are essential for encrypting data during transmission. This ensures that data remains confidential and integral during transit.
Data during Processing: Implementing encryption mechanisms for data during processing involves secure containerization and utilizing services that support encryption of data during computation, such as AWS Key Management Service (KMS) for server-side encryption.