When an app is granted storage permission, it can access the device storage at any time. This means it can upload personal files or even delete sensitive information from the device, so it’s better to think twice before giving storage permission to untrusted apps, as it can be harmful .
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Storage permission helps any app to store photos, videos or audio while downloading . Storage permission also allows access for the app to upload your photos, videos or audio.14 May 2018
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