A Review of Android operating system security issues

with the growth and development in mobile phone operating systems and hardware technologies now Security issue is an immense challenge. Presently, in the market among all the smart-phone operating systems android has the major share. As the features and powers of such phones increase, their vulnerability also increases and makes them prone towards security threats. Permission -based model used by Android operating system which allows Android applications to access system information, device information, user information and external resources of Smartphone. in Android, application developer has to declare the permissions. For an Android application to be installed successfully, the user must approve certain permissions. These consents are declarations. if the consents are allowed by the user, At the time of installation, the app can access information and resources anytime. Again, Permission need not request. Because of its security vulnerabilities, the Android operating system is prone to a variety of security attacks and vulnerabilities. In this review paper, the author has made a methodical study on why android operating system security is significant, summarizes the security attacks and issues of android operating system, what some of the possible susceptibilities are and what security measures have been implemented currently to ensure security and proposed solution.