Is Cloud Mining Legit? Run the Hashrate Math First

How cloud mining is supposed to work

Bitcoin mining is a race between machines. Each one makes trillions of guesses a second, and the first to find a winning answer adds the next block and collects the reward. That guessing speed is called hashrate, measured in terahashes per second (TH/s). More hashrate means a bigger slice of the rewards. It also means a bigger electricity bill.

Cloud mining sells you a slice of that without the noisy box in your garage. It comes in two main shapes:

• Hashrate contracts. You pay upfront for a set amount of TH/s for a set period. The provider runs the machines and pays you the bitcoin they earn, minus electricity and maintenance fees.
• Hosting deals. You buy a specific machine, and a data center plugs it in and runs it for a monthly fee. In theory you own the hardware and can have it shipped to you.

Both can be real. Both have also been faked at scale, because from your side of the screen a real contract and a fake one look identical. You see a dashboard with a number that goes up. Whether a machine anywhere is earning that number is the whole question.

The math check: what a terahash really earns

You can test any cloud mining offer with arithmetic, before you send it a cent.

Bitcoin is designed to add a block about every 10 minutes, which works out to roughly 144 blocks a day. Since the network's fourth halving on April 19, 2024, each block pays 3.125 new bitcoin, down from 6.25, CNBC reported. So the whole world's miners split about 450 new bitcoin a day, plus transaction fees.

Now the other side. In mid-April 2025, the network's computing power averaged about 910 exahashes per second, Forbes reported. One exahash is a million terahashes. Here is what that means for a typical-looking contract.

So a 100 TH/s contract earns about 0.00005 bitcoin a day before costs, or roughly 0.018 bitcoin over a full year if nothing changes. (Our math, from the figures above.) Things do change. When more machines join, your slice gets smaller. At the next halving it gets cut in half.

The industry tracks this as "hashprice," the daily revenue for each terahash of computing power. On February 5, 2026, Bloomberg reported it had fallen to a record low of about 3 cents per terahash, as large miners switched off machines. At that rate, 100 TH/s brings in about $3 a day before the power bill.

Now hold an offer up against that. A site promising 1% a day on a $1,000 deposit owes you $10 a day. At 3 cents per terahash, it would need to run about 333 TH/s for you, pay the electricity itself and still hand you every cent. Nobody runs a mining business like that. The number has to come from somewhere else, and in the cases below it came from other customers.

Four US cases, four ways the mining wasn't there

HashFlare: the machines didn't exist at that scale. HashFlare, run by two Estonian men, sold hashrate contracts to hundreds of thousands of customers. When they were charged in November 2022, the Justice Department alleged that HashFlare's equipment mined bitcoin at less than 1% of the computing power it claimed to have. When customers asked to withdraw, prosecutors said, the founders stalled or paid them with crypto bought on the open market, not crypto they had mined. Both men pleaded guilty to conspiracy to commit wire fraud.

GAW Miners: selling more hashrate than it owned. From August to December 2014, GAW Miners sold about $20 million of mining contracts it called "Hashlets," according to the SEC. The agency said the company didn't own enough computing power to back them, and that payouts to some investors came out of money from newer ones. Founder Homero Joshua Garza was sentenced on September 13, 2018, to 21 months in prison.

VBit: hosting deals for rigs nobody could point to. In a complaint filed December 17, 2025, the SEC alleged that VBit Technologies founder Danh C. Vo raised more than $95.6 million from about 6,400 investors by selling "Hosting Agreements" for mining rigs. The SEC says VBit sold agreements for far more rigs than it operated, kept no records tying any rig to any investor, and that Vo misappropriated $48.5 million. Those are allegations, and the case is in court.

Mining Automatic: a promise no miner can keep. In July 2026 the SEC charged Zan Shaikh and Mining Automatic, alleging they raised about $22 million from more than 380 investors between June 2023 and May 2025. Many contracts promised a minimum return, typically 3% a month, and told investors they'd be made whole at the end of five years. The SEC says only about 13% of investors' money went to mining costs, that some returns were paid with other investors' money, and that payments stopped by March 2025. The case was filed as partially settled.

In all four, the dashboard number had no real link to machines doing work. The math check would have flagged every one.

Real hashrate contract vs cloud mining scam

Cloud mining red flags

The CFTC and SEC's joint investor alert on fake crypto trading sites names mining directly. Fraudsters sometimes claim to invest customers' money in "mining" farms, it warns, and promises of profit with no risk are a hallmark of fraud. Add these to the list:

1. A daily or monthly percentage on your deposit. Real mining income is measured in coins per TH/s and moves with the network. Mining Automatic's 3% a month was a fixed promise, and the SEC says the mining couldn't pay it.
2. Bonuses for bringing friends. Referral tiers that pay more than the mining does mean new deposits are doing the paying. Our guide to how to spot a crypto Ponzi scheme walks through the signs.
3. No facility you can name. If the site can't tell you where its machines are, who owns the building and how much it pays for power, assume there are no machines.
4. A brand-new site with a long backstory. Check when the domain was registered. Our check on whether a crypto website is legit takes about ten minutes.
5. Paid "reviews" and press releases. Many of the top search results for cloud mining are sponsored posts and ranked lists that earn money from the platforms they rank.
6. A fee to withdraw. A real provider takes its fee out of what you earned. A demand for new money first means the old money is gone.

Prefer to watch? The 20-second math check for any cloud mining offer.

Not the same as "wallet mining" or phone mining

Two cousins of this scam get mixed up with it. "Wallet mining" or USDT mining invites you to keep stablecoins in your own wallet and press a button to "join a pool." Nothing is mined. The button signs a token approval that lets the scammer drain the wallet later. We cover it in is crypto wallet mining real?

Mining apps for your phone are the other one. A phone can't compete with industrial machines, so those apps are showing you points, ads or someone else's scheme. Our guide on whether you can mine bitcoin on your phone runs those numbers.

If you've already paid in

Order matters here, and our first 24 hours plan has the full sequence. The short version:

• Try a real withdrawal now, while the site still wants to look legitimate. If it asks for a fee, a tax or an upgrade first, stop. Don't pay it.
• Save everything. The site address, your contract, dashboard screenshots, wallet addresses you paid to and transaction IDs.
• Report it to the FBI at ic3.gov, to the SEC at sec.gov/tcr and to your state securities regulator.
• Ignore recovery offers. Anyone who contacts you promising to get the money back for a fee is running the next scam.

Not sure whether an offer in front of you is one of these? Our is this a scam? quiz takes a minute, and the Scams hub has every guide in one place.

How the biggest case ended

On August 12, 2025, a federal judge in Seattle sentenced HashFlare's founders, Sergei Potapenko and Ivan Turõgin, to the 16 months they had already served, a $25,000 fine each and 360 hours of community service, the Justice Department said. Prosecutors had asked for ten years. HashFlare's sales had passed $577 million.

Is cloud mining legit? FAQ

Is cloud mining legit?

Some hashrate rental and hosting is real, but many cloud mining offers sold online are scams. A real contract pays you a share of mining rewards that moves with the network. A site that pays a fixed percentage of your deposit isn't mining.

Is cloud mining profitable?

Often not, even when it's real. Your payout shrinks as the network grows and halves at each halving, while electricity and maintenance fees keep coming. Bloomberg reported that mining revenue per terahash hit a record low in February 2026.

How do cloud mining scams work?

They sell contracts for computing power they don't have, then show rising numbers on a dashboard. Early withdrawals are often paid with newer customers' money or with crypto the operator bought. In the HashFlare case, prosecutors alleged the equipment mined at less than 1% of the computing power claimed.

Is cloud mining legal in the US?

Selling mining contracts isn't illegal by itself. But the SEC has brought fraud cases against mining contract sellers, including VBit in December 2025 and Mining Automatic in July 2026, and the Justice Department has prosecuted others. Check any seller with your state securities regulator first.

Why can't I withdraw from my cloud mining account?

If a site blocks withdrawals until you pay a fee, tax or upgrade, treat it as a scam and stop paying. A real provider takes its fees from your earnings. Save your records and report it at ic3.gov.

How is cloud mining different from wallet mining?

Cloud mining claims to rent you real mining machines. Wallet mining asks you to keep USDT in your own wallet and press a button, which signs an approval that lets scammers drain it. Neither involves you mining anything when it's a scam.