Super Mario 3D World For Wii U Dumped/Pirated

Whilst this is not the first Wii U game to be dumped, the group that dumped it, claim it is the first true dump, here is a quote from the NFO:

Release Notes

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This is first true dump, stay tuned for more. All these dumps are
coming directly from wiiu drive itself. Hot off the press :))

The game is reportedly 23GB.

Source
Source 2