All exchanges (as far as I know) are updated with the exception of Yobit. They have more or less said they are not going to update.

The other exchanges are assessing damage from the recent attack and will open back up when they feel it is safe to do so. This is not rhetoric or speculation, we were attacked and serious damage has occurred. We are in a recovery stage now and once the dust settles we will see where we stand and what kind of damage was done.

We are officially on a more secure codebase now, but the attack occurred before the security measures were in place so the exchanges are understandably cautious.

Slosh