A Survey on Steganography Techniques

User generally need to communicate data in the form of text, image, audio or video. Because of the increase used of internet, information is mostly communicated through the network. But in a network data is not secure, it can get eavesdrop. To protect data from the third person steganography technique can be used. Steganography means hiding secret information inside another data (cover data). Cover data can be text, image, video, audio or network protocol. Different method used for text, image, video and audio steganography are analyze in this paper.