What is cloud mining and how does it work?

Cloud mining is a way to take part in crypto mining without owning or running any hardware. A customer pays a company for a slice of its mining power, and the company pays out a share of the coins that power earns, minus its fees. It works in principle, but the economics are tight and the model is widely abused by scams.

How does cloud mining work?

Ordinary bitcoin mining needs specialized machines, cheap electricity and cooling. Cloud mining moves all of that to a provider. There are two common setups.

• Contracts. The customer pays upfront for a set amount of hashrate for a set period, such as a year. The provider runs the machines and credits a share of the rewards.
• Hashrate marketplaces. Platforms such as NiceHash let buyers place orders for hashrate from other people's machines. NiceHash's help pages explain that the buyer picks an algorithm, sets a price and spending limit, and points the hashrate at a mining pool of their choice, where the rewards land.

In both cases the customer usually cannot see the machines. Pool dashboards help with marketplaces, while contracts depend on trusting the provider's reports.

How much does cloud mining earn?

The benchmark is hashprice, a measure Hashrate Index describes as the revenue a miner earns for a fixed amount of hashrate over a day. It moves with the coin's price, with network difficulty, which adjusts every 2,016 blocks, with transaction fees, and with each halving, which cuts the block reward. Hashrate Index notes it can swing 20% to 30% within one difficulty period.

A cloud mining customer earns that revenue minus every cost layered on top: the provider's margin, maintenance or electricity fees, pool fees and withdrawal fees. NiceHash says plainly that there is no guaranteed profit, and that difficulty changes, pool luck or a price drop can leave a buyer with less than they paid. The general method is covered in how is bitcoin mining profitability calculated.

Is cloud mining legit?

Some cloud mining and hashrate rental businesses are real, and hashrate trades between professional miners too. The problem is that a contract is hard to verify from the outside. A provider can show a dashboard full of earnings while running far fewer machines than it sold.

That is what US prosecutors said happened at HashFlare. Its founders pleaded guilty in February 2025 to conspiracy to commit wire fraud. The Justice Department said HashFlare sold more than $577 million of mining contracts from 2015 to 2019 to hundreds of thousands of customers, lacked the computing power to do most of the promised mining, and showed customers falsified profit figures.

What do cloud mining scams look like?

Because real hashprice rises and falls every day, an offer of a fixed daily return does not match how mining pays. A balance that grows smoothly on a dashboard proves little, since the HashFlare figures were invented. Other warning signs, earlier enforcement cases and app-store rules are covered in do crypto mining apps work, and broader patterns in common crypto scams.