As you may be aware, in the last few weeks in 4chan multiple Nintendo-related old things have been leaking, starting with old Pokémon debug ROMs and source code, then most recent 3DS debug ROMs, then keys for all consoles up until the DSi and now the biggest of them all: the full source code, design files, documentation and pretty much everything used to create the Revolution, aka Wii.
The files seem to come from a server hack related to the BroadOn company, who Nintendo hired for developing most of the Wii hardware and software.
I'm not going to link it (though you will find it easily on 4chan), but here's all the contents of this massive leak:
-Source code for boot0/1/2
-Block diagram/datasheets for every system component & Verilog for AES/SHA
-Documents from BroadOn describing feature planning and implementation + APIs + docs for internal software
-Full IOS SDK
-Source code for IOS (IOS is the Wii Operating System)
-Planning docs for implementation of the system from 2004-2006
-some wii sdk library source code (DVD, EXI)
-source code and info on manufacturing and publishing systems
-some misc. nintendo stuff (internal WPAD SDK from 2005, Wii Overview from RVL_SDK 1.0)
-"sdboot", a special manufacturing version of boot2 which loads data from the SD card; is very buggy and likely exploitable for boot2 code execution on all Wiis (it is retail signed)
-gamecube and ique stuff as well (internal gamecube docs including physical disc layout, massive 2GB+ iQue dump including full CVS for that as well)
The biggest and craziest thing in this leak is the datasheets, block diagram and Verilog files for every component. Verilog is a hardware description language; is used to describe circuits via code, so with this we can learn how every single piece of the Wii was made.
Apart from this, here's everything that has leaked during the past few weeks:
Debug Builds of Blue and Yellow
Source code for Blue and Yellow
Japanese Debug Builds of G/S
Symbol Map for Crystal.
G/S Source code
Spaceworld '99 demos
Official GameBoy emulator
Internal lists that list everything released (including unreleased ones) for all Nintendo systems up to the DS
Pokémon Gen 7 debug builds, official 3DS legality checkers, a O-Power distribution CIA and a VC Mew distrubtion CIA
Source code for the N64, Gamecube and Wii
Here's a sample video from one of the leaked N64 files, a demo ROM used by Nintendo to test the console:
There's probably more coming, but counting everything that has leaked so far, has the potential to be the biggest confidential data leak in gaming history.