What does Transmission Security aim to protect?

Transmission Security is focused on safeguarding the data being communicated across networks from interception or unauthorized access while it is in transit. This is crucial in ensuring that sensitive information is not exposed to potential eavesdroppers or attackers who might try to capture the data as it moves from one point to another. By implementing techniques such as encryption and secure protocols, Transmission Security ensures the confidentiality and integrity of the transmitted data.

The other options, while related to security, do not define the specific aim of Transmission Security. Protecting physical hardware pertains to physical security, safeguarding users from phishing attacks involves user education and cybersecurity measures, and data backups focus on data recovery and loss prevention rather than the security of data in transit.