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Research Article Open Access
Nowadays, Internet has become a convenient way for data transmission due to a fast development of modern technology. Data transmission over internet is done in many ways such as email, sms, via chat application etc. Protection for confidential data send over internet has become a necessity as unauthorized access to data by an intruder accessing it have become common, hacker also attack data via viruses for their own benefits have raised concern for protecting data. Various data hiding methods are being implemented such as steganography, cryptography and hybrid cryptography. This paper gives overview of steganography, its methods and review of existing BPCS (Bit Plane Complexity Segmentation) steganography technique which can be used to increase the data embedding capacity of image.