MODE_WORLD_WRITEABLE or MODE_WORLD_READABLE modes for IPC files because they do not provide the ability to limit data access to particular applications, nor do they provide any control of data format. If you want to share your data with other app processes, instead consider using a content provider, which offers read and write permissions to other apps and can make dynamic permission grants on a case-by-case basis.KeyStore and protect it with a user password that is not stored on the device. While this does not protect data from a root compromise that can monitor the user inputting the password, it can provide protection for a lost device without file system encryption.grep " 1 /" /data/system/packages.list to list all debug-able apps$ adb backup -f ~/data.ab -noapk com.bplus.vtpay adb backup "-noapk com.innogames.enterprise.elvenar"$ apps/com.bplus.vtpay/sp/vtp_shared_user_info.xmlContentProvider, mark them as android:exported=false in the application manifest. Otherwise, set the android:exported attribute to true to allow other apps to access the stored data.ContentProvider that is exported for use by other applications, you can specify a single permissionfor reading and writing, or you can specify distinct permissions for reading and writing. You should limit your permissions to those required to accomplish the task at hand. Keep in mind that it’s usually easier to add permissions later to expose new functionality than it is to take them away and impact existing users.android:protectionLevel attribute set to signature protection. Signature permissions do not require user confirmation, so they provide a better user experience and more controlled access to the content provider data when the apps accessing the data are signed with the same key.android:grantUriPermissions attribute and using the FLAG_GRANT_READ_URI_PERMISSION and FLAG_GRANT_WRITE_URI_PERMISSION flags in the Intentobject that activates the component. The scope of these permissions can be further limited by the <grant-uri-permission> element.query(), update(), and delete() to avoid potential SQL injection from untrusted sources. Note that using parameterized methods is not sufficient if the selection argument is built by concatenating user data prior to submitting it to the method.WHERE clauses and parsing the results. For example, an attacker might probe for the presence of a specific phone number in a call log by modifying a row only if that phone number already exists. If the content provider data has predictable structure, the write permission may be equivalent to providing both reading and writing.adb command without installing any 3rd party such as pidcat or so.adb shell ps -A | grep "<name of the application" adb logcat | grep "<PID>"{Gold: 500} replace to {Gold: 700}, at here the players will get 700 gold instead of 500 for first time the character created.