How much money did FTX hack?

Could you please clarify the amount of funds that were hacked from FTX? I understand that it was a significant loss, but I'm looking for a more specific figure. Was it in the millions, billions, or even trillions? How did this hacking incident occur, and what security measures were in place to prevent such a large-scale breach? What steps are being taken to ensure that such an event doesn't happen again in the future? Thank you for your time and attention to this matter.