Abstract The proposed visions for the sixth generation wireless communications network indicate that it will have the ability to transmit massive amounts of data in a very short time. These visions require the sixth-generation network to have a high level of security. This paper focuses on the confidentiality and privacy of data on the sixth-generation wireless communications network. The paper provides a comparison between two techniques of data hiding and showing that may be used with modern security technologies in sixth-generation networks, namely LSBsteganography and SVD watermarking.This comparison between the two technologies is to determine the strength and reliability of each technology in hiding and showing data without affecting it during transmission over the network. This paper provides the comparison by implementing some simulation experiments using these technologies on different types of data such as images, numerical data, and text messages. The simulation results showed the strength and reliability of each technology in hiding and showing data, as well as the impact of each technology on the transmitted data and whether it caused any loss or not.