Bitfinex has had a security breach today and has halted trading.
At this point in time no one knows how many BTC have been stolen.
Here are the most important links to keep you updated:
There is a message at https://www.bitfinex.com
You can see the current status of the investigation here: https://bitfinex.statuspage.io
Constant updates can be found on Reddit at:
We will update this post as more information comes available…