Soros probably doesn't maintain large cash reserves. Cash in the bank is not earning money. But even if some hacker gets to the accounts... the stolen funds will be immediately returned by the receiving bank, with apologies. You do not want to cross Soros, lest an unfortunate accident happens to you on the roof. Just look at the crowds that he casually throws into the fire.
> But even if some hacker gets to the accounts... the stolen funds will be immediately returned by the receiving bank, with apologies.
Probably in digital form with no collateral to back it but If Soros were to pull it out I bet it would create one hell of a deficiency.