What is the primary function of communication security?

The primary function of communication security is focused on protecting data in transit, ensuring that information being transmitted across networks cannot be intercepted or accessed by unauthorized individuals. This aspect of security is critical because, during transmission, data is often vulnerable to interception through various methods such as eavesdropping or man-in-the-middle attacks.

By implementing robust communication security measures, such as encryption protocols, integrity checks, and authentication methods, organizations can prevent sensitive information from being disclosed or tampered with as it moves between systems or users. This is why the emphasis is placed on safeguarding data while it is being transported, as this is a critical time when it can be compromised.

In contrast, encrypting data stored on servers relates more to data at rest security rather than communication security. User identity verification is important for access control but does not directly pertain to the transmission of data. Monitoring network traffic for anomalies is a practice related to network security but does not solely address the intended purpose of communication security, which is to protect in-transit data.