Transmitting hidden information using steganography via Facebook

Social networking websites, specifically Facebook, offer means of reaching wide audiences to share information, including photos, documents, and videos. Social networks post potential critical threats to security and privacy, for example, using steganography to send covert information via Facebook photos. Experiments show that Facebook Cover Photos can effectively hide information to at least twenty percent capacity using Discrete Cosine Transform (DCT) coefficient embedding algorithms. JavaScript Facebook application-determined key security properties are desired in a practical steganography implementation, yet, the development of such security properties is missing. Based on our experimental results, we conclude that an automated, Facebook-integrated application is not desirable for these reasons and therefore manual interaction with Facebook should be used for steganography purposes.