Which is a primary purpose of encryption in network security?

The primary purpose of encryption in network security is to secure sensitive information during transmission. Encryption transforms data into a format that cannot be understood by unauthorized individuals, thereby protecting it from eavesdroppers and potential attackers. This is particularly important as data moves across networks, where it may traverse various devices and intermediaries, each posing a risk for interception or unauthorized access. By ensuring that only authorized parties can decrypt and access the information, encryption helps maintain confidentiality and integrity, which are critical components of network security.

In the context of network communication, without encryption, sensitive data such as personal information, financial details, and confidential business data could be easily intercepted and misused. Therefore, the implementation of encryption protocols is a key strategy in safeguarding this information against threats, contributing to the overall security framework of any organization.