It might be interesting for you...
Perhaps you do not know (or you already know) that biggest polish bitcoin exchange was attacked yesterday by some hackers.
This is what we can read @bitcurex.com
Blocked hacking attack
14th of March 2014
Dear Users,
We successfully blocked a hacking attack on Bitcurex, preventing mass theft of BTC funds of our users. Thanks to automatic safety procedures, hackers managed to defraud only a portion of the funds stored in operational Hot Wallet Bitcurex. The majority of funds from Hot Wallet, as well the entirety of funds from Cold Wallet and FIAT monetary funds remained intact.
Our team located and removed the source of the problem. We are working on resuming normal service, at the same time an external audit is being conducted: we will soon provide the exact date of resuming all Bitcurex functionalities. More information will be provided in further statements.
We are sorry for the inconvenience, and most of all we thank the whole BTC community for the support we received: we were put to a test that will make us stronger.
Best regards,
Bitcurex Team
and till now exchange is not working and nobody can login into.
I hope they will come back soon and that they did not lost a lot