What is the primary benefit of end-to-end encryption in network security?

The primary benefit of end-to-end encryption in network security is to protect data from unauthorized access during transmission. This method ensures that information is encrypted at the origin and can only be decrypted by the intended recipient. By implementing end-to-end encryption, sensitive data is safeguarded from potential eavesdroppers or unauthorized entities who may attempt to intercept the information while it is being transmitted over the network.

This encryption process provides a significant layer of security since even if the data is intercepted while being sent, it remains unreadable without the correct decryption keys. This aspect is crucial in various scenarios, such as communications over the internet, where different nodes or intermediaries may handle the data temporarily.

In contrast, while options pertaining to speeding up data transmission, enhancing physical security, or reducing bandwidth usage might have their own benefits in specific contexts, they do not address the fundamental role that end-to-end encryption plays in securing data during transmission against unauthorized access.