Android security mechanism

1) Android is based on the Linux kernel, so the Linux control of file permissions also applies to Android. Each app in Android has its own/data/data/Package name folder, which can only be accessed by that app, while other apps don't have access

2) The Android privilege mechanism protects the legitimate rights and interests of the user. If our code wants to make calls, send text messages, access to correspondence, locate, access, sdcard and so on all possible violations of the rights and interests of the act must be declared in the androidmanifest.xml, so that gives the user a right to know

3) Android code obfuscation protects the developer's labor outcomes

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Android security mechanism