What is the primary objective of data encryption in information security?

The primary objective of data encryption in information security is to transform data into a secure format. This process involves converting readable data, or plaintext, into an unreadable format, known as ciphertext, using algorithms and encryption keys. This transformation ensures that even if unauthorized individuals gain access to the encrypted data, they cannot understand or utilize it without the appropriate decryption key.

Encryption is a critical component in protecting sensitive information, such as personal identification numbers, credit card details, and confidential communications. By securely converting this data, encryption helps maintain confidentiality and integrity, safeguarding it against unauthorized interception and breaches.

The focus on providing security through transformation contrasts with other options that do not relate to the fundamental goals of encryption. For instance, making data readable by anyone would compromise security, while deleting unnecessary data does not contribute to data protection. Similarly, increasing data storage capacity is unrelated to the encryption process, which centers on safeguarding the information itself rather than the physical characteristics of data storage.