Bitfinex resumed trading today

https://bitfinex.statuspage.io/

Today, August 10th, 2016, at 16:00:00 UTC we will be enabling additional platform features as we continue to restore service after the incident on August 2nd. Exchange trading will be enabled for all currencies and pairs, while deposits and withdrawals will be enabled for BTC, ETC, ETH, and USD - with LTC and Tether to follow shortly thereafter. Exchange trading will also be enabled for the BFX token on pairs BFXUSD and BFXBTC. We are working on tokenizing BFX via the Omni Layer to allow withdrawals for the BFX token, but we are still working out some protocol level details. Please note that U.S. residents will only be able to sell—not buy—BFX tokens at this time. Terms for the BFX token and requirements for token transfers are available on the site. Parameters for assigning Margin Trading will be re-enabled for non-U.S. residents later this week.
In the past week, we have taken significant steps to ensure that we can restore service in a secure environment. We have added additional platform and infrastructure security checks; regenerated all encrypted services, including wallets, security tokens, and passwords; moved funds to multisig cold storage; re-evaluated all third-party integrations; performed a comprehensive system audit in order to identify vulnerabilities; and, rebuilt our entire platform on new infrastructure.
Please note that we have invalidated all deposit addresses that were generated before August 9 19:00:00 UTC for all cryptocurrencies except Tether USDT. Please do not deposit to these older addresses as this will cause substantial delay in deposit processing. All deposit addresses now shown on the site or generated by the API are the new addresses. Please be sure to use these new deposit addresses when depositing cryptocurrencies.
We are aware that many questions remain and we intend to discuss the theft, the distribution of losses, and our recovery plan in follow-up announcements. We are trying to be as transparent as we can be while we continue to try to make the best of a terrible situation. We regret the loss that took place, but we continue to remain confident in Bitcoin, the trading community, and our plan to compensate our customers. As always, we remain open to constructive commentary and suggestions from all sides.
Aug 10, 14:04 UTC

If you are not American customer and you were not verified I think you need to verify your account to prove you are not American so you can trade BFX.
If you changed your passwordm withdrawals are on hold for couple of days (some say if you send support ticket withdrawals can be unsuspended quicker - not sure about that).