Abstract: Steganography is the method of concealing a secret message within a cover object such as text, image, audio and video. The main goal of the steganography is the imperceptibility which means making the prediction of the existence of the secret message difficult. This study develops an imsage steganography method deals with hiding a text message within a JPEG cover image. The proposed method has the goal of increasing the security by applying the encryption to the secret message before concealing it. The encryption is based on using an audio file as a key. The proposed method is achieved by modifying the Least Significant Bit (LSB) insertion method. Each step in the proposed system will generate four segments, segment’s size is variable throughout the processing. The proposed system used different number of bits with the LSB for each selected pixel, so, the 1st selected pixel will be leaved without concealing any secret bit, LSB (1-1-0) will be applied to the 2nd selected pixel while the LSB (0-1-2) will be applied to the 3rd selected pixel. Finally, LSB (2-0-1) will be applied to the 4th selected pixel. The proposed method is considered secure against the attack since, it uses the encryption, also, it has a good PSNR, AD and COR statistical values making it convenient.