What is encryption primarily concerned with?

Encryption is primarily concerned with the conversion of plaintext data into a coded format that is unreadable to unauthorized users. This process involves the use of algorithms and keys to transform original data into an encrypted form, which can only be reverted to its original state by those who possess the correct key. The main goal of encryption is to protect the confidentiality and integrity of information, ensuring that sensitive data remains secure even if it is intercepted or accessed by unauthorized individuals.

While securing physical data storage, transmitting data over unsecured networks, and backing up data for recovery are important aspects of data security and management, they do not fundamentally represent the purpose of encryption. Encryption specifically focuses on altering the data itself to prevent unauthorized access, rather than on the methods of data handling or storage. Thus, the correct understanding hinges on the nature of encryption as a protective measure that transforms data into a secure format.