What is the main goal of using encryption methods?

The primary goal of using encryption methods is to protect data from unauthorized access. Encryption transforms readable data into an unreadable format using algorithms and keys. This process ensures that even if an unauthorized individual gains access to the encrypted data, they cannot interpret it without the proper decryption key, thus safeguarding sensitive information from breaches and keeping it confidential.

In the context of cybersecurity, protecting data is crucial, as it helps maintain privacy, secures communication, and ensures that information remains intact and unaltered during transmission or storage. While the other options mention various aspects related to data, such as compression, accessibility, and performance, they do not align with the fundamental purpose of encryption, which is centered on maintaining the security and integrity of data against unauthorized access.