1. Mobile Operating System Market Share Worldwide http://gs.statcounter.com/os-market-share/mobile/worldwide. Mobile Operating System Market Share Worldwide http://gs.statcounter.com/os-market-share/mobile/worldwide.
2. Android vs iOS vs Windows: Which suffers most infections? Nokia reveals all https://www.zdnet.com/article/android-vs-ios-vs-windows-which-suffers-most-infections-nokia-reveals-all/. Android vs iOS vs Windows: Which suffers most infections? Nokia reveals all https://www.zdnet.com/article/android-vs-ios-vs-windows-which-suffers-most-infections-nokia-reveals-all/.
3. McAfee Mobile Threat Report https://www.mcafee.com/cn/resources/reports/rp-mobile-threat-report-2018.pdf. McAfee Mobile Threat Report https://www.mcafee.com/cn/resources/reports/rp-mobile-threat-report-2018.pdf.
4. Detecting Android application malicious behaviors based on the analysis of control flows and data flows
5. Application of clustering methods for analyzing the security of Android applications