With the growth of the Internet, cyberattacks are evolving quickly, and the state of cyber security is not promising. Cyber security is often an extension of traditional information technology (IT) security that aims to safeguard systems, applications, and data that are vulnerable to various online assaults, such as data theft and espionage as well as data manipulation and denial of service attacks. Due to the losses incurred by countries, companies, and people as a result of numerous cybercrime assaults, there is a need for an increase in cyber security research. This study examines deep learning (DL), watermarking techniques for cyber security applications and illustrates how deep learning and water making is used in cybersecurity and how state-of-the-art solutions may be outperformed by deep learning ones. We advise professionals to think about integrating deep learning into security systems.