Abstract
At present, great attention is paid to the secure delivery of information and files on the Internet. Thus, the exchange of confidential information through various channels remains inevitable and there is a need for both encryption and hiding the fact of transmission. Word "Steganography" takes roots from the Greek word steganos, which means covered. Steganography is a technique for concealment the transmitting of a secret message. There are several methods to achieve this goal for embedding a secret message in another file, be it a picture, video, audio or text. This article is an attempt to analyze the various steganography techniques depending on the file types and identify the most effective ones.