In this paper, we have presented the golden ratio-Haar wavelet based multimedia steganography. The key features of the proposed method are: 1. New Haar wavelet structure based on the Fibonacci sequence, and Golden Ratio. 2. Parametric transform dependency, as decryption key, on the security of the sensitive data. One of the important differences between the existing transform based data hiding techniques and the proposed is that not only the pseudo-random keys provided by the data hiding methods are vital, but also the parametric transform we proposed, which has become a key, is necessary in order to reconstruct the secret message.