“…Although its history can date back to 440 BC [1], its candidate carriers have been ceaselessly evolving with the elapsing of years [2]. Over the last years, the steganographic carriers have developed from image [3,4] to almost all media forms (e.g., video [5,6], audio [7,8], text [9,10], network protocol [11,12], and Voice over IP [13][14][15][16]). However, steganography is a double-edged sword.…”