the explanation from Changpeng Zhao regarding the data migration is plausible. i'd wait before assuming the worst. expected ETA for re-launch of trading is 5 hours. the ETH account is widely identified as binance's and the account activity isn't indicative of a hack.
I think it's lies.
if so, they aren't doing themselves any favors taking so long to bring the site up. there will probably be somewhat of an exodus when they are back on-line no matter what now.