How should sensitive data be transmitted over public networks?

Transmitting sensitive data over public networks poses significant security risks, as these networks can be susceptible to eavesdropping and unauthorized access. Using a secure VPN (Virtual Private Network) connection is the best choice because it encrypts the data being transmitted, ensuring that even if someone intercepts the data, they cannot easily decode or access its contents.

A VPN establishes a secure tunnel over the public network, adding a layer of protection against potential threats and ensuring that sensitive information remains private between the sender and recipient. This method effectively mitigates risks associated with data breaches and unauthorized access, making it a vital practice in data security when using public networks.

In contrast, other options lack adequate protection for transmitting sensitive data: unencrypted and readily transmitting data exposes it to potential interception, standard email can also lack the necessary encryption, which could result in sensitive information being accessed without authorization, and avoiding public networks altogether might be impractical, as they are often necessary for various communications.