Custom application-level encryption provides organizations with precise control over what is encrypted and who manages the encryption keys. Unlike network-level encryption, this method allows sensitive fields (e.g., credit card numbers) to be encrypted before data even enters the storage or processing pipeline.
This approach enables compliance with strict data privacy laws and protects data from being decrypted by unauthorized actors—even cloud providers. Organizations can enforce key rotation policies and maintain exclusive key access.
This is detailed in Domain 11: Data Security and Encryption, which recommends application-level encryption for sensitive data protection, particularly in regulated industries.
[Reference:CSA Security Guidance v4.0 – Domain 11: Data Security and Encryption, ===========]
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