It's a TON of data. When I was in an alliance during my EVE days we had TONS of "classified" information. It would consist of systems, contents within those systems, daily numbers for corp and alliance transactions, influx of cash, spies, plans, user information, capital and super capital ship information / plans; EVE is such a huge and complex game that many joke that it's a "second job". Well, that means they also have a TON of data that can be used by other corporations / alliances.

Such an interesting game. I played for years and always want to go back.