Which measure is recommended for protecting accounts and encryption keys?

Using secure protocols is a fundamental measure for protecting accounts and encryption keys. Secure protocols ensure that data transmitted over networks is encrypted and protected from interception by unauthorized parties. This is particularly important when managing sensitive information such as authentication credentials and encryption keys, as they can be targeted by attackers looking to gain access to a system or sensitive data.

When secure protocols are in use, the likelihood of data breaches is significantly reduced. Protocols like HTTPS, SSH, and SFTP apply strong encryption mechanisms to safeguard the integrity and confidentiality of the data being transmitted. This guarantees that only intended recipients can access the information, thereby enhancing the overall security posture.

Other options, such as creating multiple accounts or using shared passwords, do not inherently offer the same level of security. For example, creating multiple accounts could complicate access control without necessarily enhancing security, and using shared passwords poses a significant risk regarding accountability and management, as it makes it difficult to trace actions back to specific users. Storing keys in unsecured locations directly contravenes best practices for security and increases the risk of loss or theft. Therefore, employing secure protocols stands out as the most reliable method for protecting accounts and encryption keys.