Having finally taken a foothold by the radial growth of the internet generation in the recent years, steganography serves as a mean for private, secure and sometimes malicious communication. From a technical eye, this thesis focuses on amalgamation of two methods for securing global cyber data. To achieve this perfect blend, A-B MAP Cipher is performed in order to tune the cyber data to cipher text pursued by bit replacement in audio signal with cipher bits by adopting ASET. This multilevel cladding ensures high level security to the global cyber data. © 2011 IEEE.