Photonics is the science and technology of generating, controlling, and detecting photons, particularly in the visible and near-infrared spectrum. In cybersecurity, photonics plays a crucial role in the development of secure communication systems, such as fiber-optic networks and quantum cryptography. By leveraging the properties of light, photonics enables high-speed data transmission, enhanced encryption methods, and improved resistance to electromagnetic interference. As cyber threats evolve, photonics-based technologies are increasingly vital for ensuring the confidentiality, integrity, and availability of sensitive information across global digital infrastructures.