To check for sensitive information in an application's memory on an Android device, you can use the following steps:
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Connect the device to your computer and enable USB debugging.
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Open a command prompt or terminal window and navigate to the platform-tools folder in the Android SDK directory.
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Use the command adb shell to access the device's command line.
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Use the command run-as <your.package.name> to switch to the app's sandbox.
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Use the command ps -ef | grep <your.package.name> to find the process ID of the app.
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Use the command cat /proc//maps to display the memory map of the app.
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Use the command cat /proc//mem to dump the memory of the app.
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Use a tool such as strings or grep to search the memory dump for sensitive information such as passwords, tokens, or keys.