Our future work includes exploring ways to support secure messaging in other areas of Facebook where the communication is asynchronous, such as wall postings and status updates. We would also like to explore ways to make the ciphertext less intrusive when displayed to unauthorized parties. For instance, can we adapt steganography so that the encrypted message is stored in an image that is visible to unauthorized users, while the actual message is displayed to those authorized to
see it. We also plan to propose a standardized API that service providers could support to make it easier for third parties to
offer security services based on security overlays.