(https://news.bitcoin.com/wp-content/uploads/2017/12/hacked.jpg)
According to reports circulating on the web, the mining pool Nicehash was hacked today for allegedly 4,449 BTC or US$60M at current prices. The Nicehash pool has confirmed the organization was breached but did not disclose how many bitcoins were stolen.
https://news.bitcoin.com/nicehash-mining-pool-allegedly-hacked-accused-of-losing-4449-btc-us60m/