Updating with some additional information to the blockchain address
http://techcrunch.com/2015/01/05/bitstamp-bitcoin-exchange-hack/Bitstamp customers can rest assured that their bitcoins held with us as prior to temporary suspension of services on January 5th (at 9am UTC) are completely safe and will be honored in full.
On January 4th, some of Bitstamps operational wallets were compromised, resulting in a loss of less than 19,000 BTC. Upon learning of the breach, we immediately notified all customers that they should no longer make deposits to previously issued bitcoin deposit addresses. As an additional security measure, we suspended our systems while we fully investigate the incident and actively engage with law enforcement officials.
As an aside it makes the top 3 (Not the best start to 2015)