1. Detailed about this statistic/trend.
http://www.grabstats.com/statmain.aspx?StatID=402
. Accessed Mar 2017
2. Messenger and WhatsApp process 60 billion messages a day, three times more than SMS.
http://www.theverge.com/2016/4/12/11415198/facebook-messenger-whatsapp-number-messages-vs-sms-f8-2016
. Accessed Mar 2017
3. Jagetiya, A., Rama Krishna, C.: Digital image steganography “seeing is always not believing” research front. CSI Commun. 38(3), 23–26 (2014)
4. Chandramouli, R., Memon, N.: Analysis of LSB based image Steganography techniques. In: Proceedings of the International Conference on Image Processing, 7–10 October, vol. 3, pp. 1019–1022 (2001)
5. Kumar, R., Malik, A., Singh, S., Kumar, B., Chand, S.:A space based reversible high capacity text steganography scheme using font type and style. In: ICCCA, 29–30 April 2016. IEEE (2016)