Cloud mining service NiceHash has contacted its customers to assure them that it will resume operations and recompense stolen funds to clients.

Users of the NiceHash service received a letter from the project team, in which it promised to recover the funds lost due to the hacker attack in early December. Also, NiceHash promised to resume work immediately.

“Despite the unfortunate event, we are letting you know that our service will be resumed today and your money will be paid back,” the letter reads.

Users' balances will be reimbursed by January 31, 2018. Compensation will be paid either to sellers or buyers of processing capacity.

NiceHash managed to reserve funds required to restore balances with the help of a group of international investors.

Currently, the company is engaged in settlement of legal issues and encourages its users to show patience.

“We are truly sorry for any inconvenience that the hack may have caused. We hope you will want to continue to invest your money and your faith in the world's largest crypto-mining marketplace,” the letter says.

The document was signed by the NiceHash marketing director Andrej Skraba.

Users took the information with enthusiasm, but many were surprised why this message was not posted on the NiceHash website or its social networks. But apparently, the letter is not a scam or falsification as a NiceHash representative confirmed information at the relevant Reddit thread.

The hacker attack on NiceHash was carried out on 6 December. Around 4,700 bitcoins were stolen during the cyber attack.