Information hiding is a research area that focuses on techniques and methods for concealing data within other data in order to protect sensitive information or to transmit data covertly. This can involve embedding of data within digital media files such as images, videos, or audio, as well as steganography, which is the practice of concealing messages within other messages or data. Information hiding can be used for various purposes, including secure communication, digital watermarking, and copyright protection. Researchers in this field develop algorithms and methods to securely embed and extract hidden data, as well as to detect the presence of hidden information in digital media. This area of research has applications in cybersecurity, digital forensics, and data privacy.