Information security is the one of the most important,crucial part of any digital communication and one of the largest issues faced in the digital world. Securing information from unauthorized access,modification and destruction,maintain the confidentiality and integrity of the data. Though many security techniques exist to secure information,well known and widely used is a cryptography and steganography. Cryptography is the art of changing the text into an unintelligible content at the sender and it is changed again into readable content at the receiver end. Steganography is hiding the content to the any digital media like image,video and audio which cannot be seen. The ultimate goal of steganography rather than robustness is that the adversary,not even able to identify that the media contains the secret message. The strength of steganography applications depends on the result of the stego object. The difference between the original object and stego object should not be more in terms of visual and statistical properties. This paper provides the review of various steganography techniques in different domains,performance evaluation metrics,key issues,discussion on the latest methods and future directions in this field. This article also provides the strength and weakness of the each technique. © 2016,International Journal of Pharmacy and Technology. All rights reserved.