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Update 2023-08-30-Android-Fingerprinting-With-Wallpapers.md
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ColoursofOSINT committed Sep 1, 2023
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Expand Up @@ -29,8 +29,8 @@ $$ {(2^{24})(2)} = 2^{144} $$

This information is provided as 144 bits, which can be used as a direct identifer, or inputed to create a SHA-256 hash, as in the case of the trial application created by Fingerprint. The application compares the hashes to other submitted hashes to determine the uniqueness or the device based solely on the wallpaper. Thankfully, such fingerprinting is defeatable - as explained by Fingerprint – by keeping the default wallpaper, or setting it to completely black (as in the case of GrapheneOS) to provide anonymity. You can try the application and read more [here](https://fingerprint.com/blog/how-android-wallpaper-images-threaten-privacy/).

> By keeping the default wallpaper, or setting it to completely black, one can defeat this type of fingerprinting.
> By keeping the default wallpaper or setting it to completely black, one can defeat this type of fingerprinting.
{: .prompt-info }

[^footnote]: https://developer.android.com/about/versions/oreo/android-8.1](https://developer.android.com/about/versions/oreo/android-8.1#wallpaper)https://developer.android.com/about/versions/oreo/android-8.1#wallpaper
[^footnote-2]: https://developer.android.com/reference/android/app/WallpaperManager#getDrawable()
[^footnote]: [https://developer.android.com/about/versions/oreo/android-8.1](https://developer.android.com/about/versions/oreo/android-8.1#wallpaper)https://developer.android.com/about/versions/oreo/android-8.1#wallpaper](https://developer.android.com/about/versions/oreo/android-8.1](https://developer.android.com/about/versions/oreo/android-8.1#wallpaper)https://developer.android.com/about/versions/oreo/android-8.1#wallpaper)
[^footnote-2]: [https://developer.android.com/reference/android/app/WallpaperManager#getDrawable()](https://developer.android.com/reference/android/app/WallpaperManager#getDrawable)

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