1. eMarketer [Internet]. Smartphone users worldwide Will total 1.75 Billion in 2014; c2017 [cited 2017 Aug 30]. Available from: http://www.emarketer.com/Article/Smartphone-Users-Worldwide-Will-Total-175-Billion-2014/1010536.
2. Snell B [Internet]. Mobile Threat Report: What’s on the Horizon for 2016; c2017 [cited 2017 Aug 30]. Available from: https://securingtomorrow.mcafee.com/consumer/mobile-security/mobile-threats-report-whats-on-the-horizon-for-2016/.
3. Murdoch SJ, Drimer S, Anderson R, Bond M. Chip and PIN is Broken. Proceedings of the IEEE Symposium on Security and Privacy. 2011; Berkeley, CA.
4. Analysis of Knowledge Based Authentication System Using Persuasive Cued Click Points;A Nayak;Procedia Computer Science,2016
5. Design and Development of Layered Security: Future Enhancements and Directions in Transmission;A Shahzad;Sensors,2016