To check for sensitive information in local storage 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 ls -al to list all files in the app's local storage directory.
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Inspect the files and directories for any sensitive information such as passwords, tokens, or keys. Alternatively, you can use a command such as find /data/data/<your.package.name> -type f -exec grep -H "password" {} ; to search for specific keywords in all the files of the app's local storage directory.