That's enough to get a either a fuckload of people or absolutely nobody fired, depending on how many people are insane enough to go through that much data.
Overall very little will change, maybe a few firings here and there to make a nice display; however, the current methods of hiding money will now be considered more risky and they will seek out new ways to hide money until that too is exposed. Repeat that pattern 'till the heat death of the universe.