shouldn't bitfinex have backup accounts in other countries? why put the fate of all their business in one country's account. If this is their only account, then I mus say they have failed to plan.
they made an announcement on their site talking about these issues about 5 days ago and in that they mentioned something about their funds not being frozen but payment channels being closed.
and also they mentioned that "U.S. banks aren't holding any of their funds." so they should have more than just one bank.
they may have disabled everything to prevent further problems.
https://www.bitfinex.com/posts/199what i find weird is why an exchange located in Hong Kong uses banks in Taiwan!