Just adding some information I collected in various threads and on reddit:
Bitcoin24 is pretty much dead, mainly for the second of two problems:
1) The admin/owner TAiS46 does not seem to have the necessary experience to run a big trading platform.
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2) There are strict regulations in place for any bank/currency exchange/... operating in europe, to hinder
The big question is I guess now whether the administration asks him to freeze bitcoin assets also, and if not, whether he'll actually be able to/allow withdrawal of BTC. The fiat is probably tied up in the legal battle for quite some time. Fines for money laundering (even if not that intentionally) can also be rather high (its not the US where a big bank had to pay a 1.9 billion dollar fine, but still).
Thanks for that information. That is also what Ive been increasingly assuming over the last few days.
We don't know yet though how things will develop. He can probably get the exchange back online without too much hassle assuming he has people to help.
The problem with the bank accounts could be harder to crack. No useable bank account = no operating exchange possible.
The only other alternative: pass the monies back to the customers.
But these options will only be possible if the account isnt permanently blocked because of the lack of proper bank compliance.
As for anyone suing him, that's completely useless in this situation.
If as seems the case, bank compliance regulations havent been followed and the bank suspects money laundering, they are bound by law to block business with the company or person concerned, and what's more, to report the matter to the authorities.
Trouble is when it comes to money laundering/money for terrorism suspicions, the authorities are paranoid and the standard procedure is to freeze all funds, so the innocent suffer as well as the guilty...
I only hope the outlook in reality is better than it looks right now.