In Kubernetes, when using Secrets to store sensitive data, how is the data stored within the Secret by default?

In Kubernetes, when using Secrets to store sensitive data, how is the data stored within the Secret by default?

• A. Stored unencrypted in base64 encoding
• B. Encrypted at rest
• C. Stored as plain text
• D. Stored in AES encoding

Answer: (A)

Secrets in Kubernetes are stored as base64-encoded strings inside the Secret object. This encoding is not encryption—it's just a way to represent binary data in JSON/YAML. By default, that encoded data is persisted to etcd in this form, so it isn’t encrypted at rest unless you configure encryption at rest. If you need real protection at rest, you would enable an encryption provider (encryptionConfig) or use a KMS, and enforce strict access controls. In short, the data is stored unencrypted but base64-encoded by default.

Secrets in Kubernetes are stored as base64-encoded strings inside the Secret object. This encoding is not encryption—it's just a way to represent binary data in JSON/YAML. By default, that encoded data is persisted to etcd in this form, so it isn’t encrypted at rest unless you configure encryption at rest. If you need real protection at rest, you would enable an encryption provider (encryptionConfig) or use a KMS, and enforce strict access controls. In short, the data is stored unencrypted but base64-encoded by default.