In 2014 nearly a million bitcoins - worth around $700million at the time - were stolen from Japanese bitcoin exchange Mt Gox, rendering it bankrupt.
The service has been showing a mysterious maintenance notification for the entire day already, according to some rumors coming from expert users of the pool and blogger steemit mention it seems possible that NiceHash has been the victim of one of the biggest hacks ever seen on such a platform.
NiceHash, which describes itself as the largest marketplace for mining digital currencies, said Wednesday that it was suspending its operations for at least 24 hours because of a security breach.
In the meantime, NiceHash is recommending users change their passwords. The speculation fuelled by the fact that the majority owner of NiceHash is a company named H-Bit, owned by Martin Skorjanc, the father of Matjaz Skorjanc, convicted author of the Mariposa bot. While adding that they are working to "verify the precise number of BTC taken" Coindesk notes that a wallet address tied to the company previously held 4,736.42 bitcoin, worth around $62 million at the time the took place but as of the current price of bitcoin is worth $68 million.
It said in a statement: 'Our payment system was compromised and the contents of the NiceHash Bitcoin wallet have been stolen.
"In addition to undertaking our own investigation, the incident has been reported to the relevant authorities and law enforcement and we are cooperating with them as a matter of urgency", it said.
Inconvenience is an understatement - especially as so much was left in a single wallet - but the moment those coins shift, we may know more about the fate of the stolen investor funds. "It will be a huge uphill battle for NiceHash to overcome this breach as it's very damaging to its brand".
Earlier today, Steam announced that it would no longer be accepting Bitcoin as a form of payment, as the transaction fees had become too great. We will endeavor to update you at regular intervals.