Cryptocurrency Scams Study

What is cryptocurrency? It is a digital payment system that does not rely on banks to verify transactions. It is a form of digital money that uses encryption technology that can enable anyone anywhere to send and receive payments. It does not exist in physical form, like paper money. It exists as lines of computer code digitally signed each time it travels from one owner to another.

To understand the fraudulent aspects of this industry, it is necessary to provide background on common terminology and an understanding of how this system works. Most cryptocurrency fraud and complaints involve Bitcoin. Another form of cryptocurrency is Ethereum. There are thousands of new types of cryptocurrencies, but they all operate with blockchain technology. The essential concepts are the same.

Bitcoin was developed in 2009 by Satoshi Nakamoto, who may or may not be a real person. It operates wholly over the internet. There is an open- source code for the programs that operate it and a governing committee that sets the basic rules for the system. This allows person-to-person sharing anywhere in the world without any central authority, such as a bank, tracking transactions or reporting to any government agency. Importantly, transactions are not reversible. They do not offer many of the safeguards which protect users of traditional financial systems.

How is Bitcoin created? “Miners” solve incredibly complex mathmatical problems and recieve Bitcoin as a reward. Deispite the use of the term “token,” Bitcoin only exists electronically. The originating protocols of this system allow for creation of a maximum of 21 million Bitcoin. Mining currently accounts for 18.7 million Bitcoins. The mathematical problems are increasingly more complex, and the rewards for mining decrease with time. As a result, there is a limited supply of Bitcoin available.

It takes specialized computers to perform the enormous number of calculations needed to mine, consuming massive amounts of electricity, a criticism of the industry. Miners create the “blocks” in the blockchain and act as auditors to write the ledgers, making sure the same Bitcoin is not used twice. This prevents double spending and counterfeiting. Miners are compensated with Bitcoin.

Bitcoin mining occurs all over the world. Because all cryptocurrencies rely on blockchain and require mining, some cryptocurrency businesses offer investments in mining operations. Some hackers use the others’ computers to surreptitiously run mining programs — an act called cryptojacking.

What is blockchain? Blockchain is what makes cryptocurrencies employ it. It is an open record of every Bitcoin transaction and serves as a ledger of all transactions and includes a time stamp. This decentralized system is distributed among computers all over the world that validate and record transactions. Every few minutes, miners add “blocks,” which cannot be edited. Proponents believe there is great potential in blockchain technology, but there are few situations where it operates outside the realm of cryptocurrency. It is not clear who would pay for the mining necessary to support other uses of the blockchain technology.

How can I buy Bitcoin?

Bitcoin and other types of cryptocurrencies can be purchased at Bitcoin ATMs (kiosks) or at Bitcoin exchanges with various apps. Exchanges permit the purchase of cryptocurrency through almost any method, including bank wiring, credit cards, and even with gift cards. Cash App, a popular smartphone application backed by banks, is another option.

Bitcoin ATMs

Because many people are unfamiliar with cryptocurrency, one might expect that they would be reluctant to pay scammers that way. With the advent of Bitcoin ATMs, victims can now go to a convenient place near them to easily and quickly send Bitcoin.

How does a Bitcoin ATM work?

Most Bitcoin ATMs allow a user to register an account at the machine. One company stated for amounts under $250, consumers just need to enter a phone number to register an account. Other companies may have different requirements. Consumers load the Bitcoin into a “wallet” they have created (or set up at the ATM) or send it to someone else’s Bitcoin wallet. The FBI warns that scammers provide victims with a QR code to their phone, representing the “address” of the Bitcoin wallet receiving the funds. The machine scans the code and the money goes into the blockchain. The recipient can cash it out in just a few minutes after the blockchain is updated.

One use for Bitcoin ATMs is simply to purchase Bitcoin, store it in a wallet, and hope it appreciates in value. Bitcoin ATMs may also be used to send money to family members in other countries. These remittances are a major source of income for Mexico and other countries. They are an important part of the business for companies like Western Union and MoneyGram. There is more privacy in sending money through Bitcoin, and fees can be lower.

Some Bitcoin ATMs have warning signs on them. Those operated by Bitcoin Depot have a sign reading:

WARNING! Have you received a phone call from someone demanding payment with Bitcoin? THIS IS LIKELY A SCAM. All Bitcoin transactions are irreversible. Send to your own wallet only. NOT SURE if you are being scammed? Call us for assistance at…

There is a free phone at the Bitcoin ATM for consumers to call for assistance with their transactions or to report a possible scam. Some machines also have security cameras recording videos of those at the machines.

Where can I find Bitcoin near me?

Bitcoin ATMs, or kiosks, have expanded very rapidly and are now found at nearby locations across the U.S. and Canada. In January of 2020 there were 4,212 of these machines in the U.S. But now there are over 30,000 in the U.S. and 2,235 in Canada, the second most in the world. There is even a website that can locate one near you. Bitcoin ATMs are commonly located at gas stations/convenience stores such as Circle K and at many Walmart stores.

How are bitcoin ATMs regulated?

Bitcoin ATMs are regulated by FinCEN in the U.S. and Fintrack in Canada. In the U.S. registration is required. The ATM must comply with the Bank Secrecy Act and its anti-money laundering standards (AML), such as Know Your Customer (KYC) requirement to identify who is sending money. There are also currency transaction reports (CTRs) which must be completed if someone tries to send more than $10,000 or in total sums calculated to evade these controls. Owners of these systems must also provide the government with Suspicious Activity Reports (SARs) about certain transactions.

There are reports about problems with scammers seeking money through Bitcoin ATMs.

The FBI warns of an increase in scammers asking victims to pay through Bitcoin ATMs for government impostors, those impersonating utility companies or law firms, and for lottery frauds. Scammers ask victims to withdraw cash from bank or retirement accounts. CAFC also reported that scammers ask victims to go to Bitcoin ATMs to send money, as has the FTC.

These machines also may be subject to state licensing and regulation as Money Services Businesses like Western Union and MoneyGram. The State of New Jersey issued a report in February 2021 warning of unlicensed ATMs operating with few safeguards to protect the public.

These unlicensed sites were used for fraud. The New Jersey investigation also found that one third of the ATMs operating in the state had not registered with FinCEN. State Police had prosecuted an individual who received $600,000 in payment in Bitcoin from victims who “purchased” nonexistent vehicles.

In 2020, the Justice Department dismantled a network of Bitcoin ATMs that laundered up to $25 million at ATMs in California. These machines were not registered, and the owner knew they were used for illegal activity. He was sentenced to two years in prison.

What is a cryto wallet?

Because Bitcoin and other tokens have no physical existence, owners control the encrypted cryptocurrency passwords, which are like incredibly complicated PINs. The codes are stored in “wallets.” Those can be stored at Bitcoin exchanges, on a personal computer or other device, like a thumb drive. Bitcoin exchanges also offer wallets. Many people store cryptocurrency in apps on their smart phones. But scammers can supply victims with corrupt apps they control, and bogus apps can be found on the App Store and Google Play.

What can I buy with cryptocurrency?

While there are reports that retailers are considering accepting Bitcoin and other cryptocurrencies for payment, it is unclear that many do currently. Tesla said some transactions are accepted using Dogecoin to purchase merchandise like belt buckles, but that form of payment cannot be used to buy a car.

PayPal now allows people to pay for purchases with Bitcoin, but not directly. PayPal converts Bitcoin to dollars at a rate they determine after converting the cryptocurrency. This is due to the volatility of cryptocurrency. Merchants are understandably reluctant to take payments in a currency which may quickly drop in value.

Charitable enterprises do accept donations in Bitcoin, and BBB Wise Giving Alliance has developed a system that allows for donations in many kinds of cryptocurrency.

How do I track cryptocurrency?

Because the blockchain is a ledger of all transactions, it is possible to trace the path of a cryptocurrency payment from where it began to where it went. Chainalysis is one company that offers a service to track Bitcoin and other cryptocurrency. Ciphertrac and Elliptic are other cryptocurrency tracking services. 

Once cryptocurrency goes into a scammer’s wallet, consumers may not know who owns that wallet. Scammers can quickly cash out the cryptocurrency into dollars or other national currencies — referred to in the cryptocurrency field as “fiat currency” — or quickly move the money by trading it for other kinds of cryptocurrency.

Password security

Each transaction is recorded on the blockchain. They are encrypted, and an electronic code or key to use cryptocurrency is required. Lose the key, and you lose the money. There is a famous story of Gerald Cotton, who died at age 30 and never revealed the key to $250 million worth of cryptocurrency. This led to speculation that this was a scam, and he did not really die.

Scammers actively attempt to hack these keys. Hackers seek access to wallets where cryptocurrency is stored, and online exchanges have usernames and passwords to protect these keys. Many of these passwords require two-factor authentication, often by text message. Scammers attempt to engage in SIM swapping — transferring a phone number to themselves so that they receive those text messages. In one recent case, a New York man pleaded guilty to SIM swapping, which he used to steal $20 million in cryptocurrency. In addition, phishing scams appearing to come from legitimate exchanges are a significant issue, since the stolen credentials can lead to identity theft and cryptocurrency loss.

What are Bitcoin exchanges?

People often store Bitcoin in wallets held by exchanges, where one can buy, sell, or trade cryptocurrency. An account must be set up to authenticate identity, but some exchanges, particularly those located in other countries, may require less information about a person’s identity. Those accounts have passwords, and those must be secure.

An exchange can simply store Bitcoin with hopes it appreciates in value, but it can also track the value in an account, trade it for other types of cryptocurrencies or convert it to U.S. dollars or fiat currency. Exchanges charge a transaction service fee.

What is Ethereum?

The second most common cryptocurrency after Bitcoin is Ethereum, which can be bought and sold as investments. Like all cryptocurrency, it uses blockchain, but the codes stored on the block can contain decentralized applications, known as dApps.

What are non-fungible tokens (NFTs)?

Non-fungible tokens are part of the Ethereum blockchain system. They are trending up in popularity. Ethereum “smart contracts” can record ownership of a digital asset, such as a digital picture or music, and this ownership can be recorded on the blockchain ledger.

A piece of digital art can be sold and ownership of it is recorded; however, it does not mean it is protected from copyright violations, despite the recent increase in popularity.

The Wall Street Journal reported: “In 2020, just over $100 million worth of NFTs changed hands. Last year Chainalysis estimates that grew to $44.2 billion.”

NFTs can then be sold, or the original owner can get a royalty every time

it changes hands. NFTs are used frequently for digital art and music and for video games. The Morning Brew noted, “The Bored Ape Yacht Club (BAYC), a collection of 10,000 ape avatars that individually act as tickets to an online social club, has become one of the most prominent brands in the NFT space.”

The U.S. Treasury Department recently warned that NFT’s are increasingly used to launder money and threatened to make them subject to regulation.

Be careful with QR code links

Quick Response or QR codes are square barcodes that a smartphone camera scans and reads to quickly lead the user to a website. A QR code can also be used to send or receive Bitcoin from one person to another. A scammer may send a victim a QR code that they can scan at a Bitcoin ATM, and it provides the address the Bitcoin is to be sent. The FBI warns consumers that “cybercriminals are taking advantage of this technology by directing QR code scans to malicious sites to steal victim data, embedding malware to gain access to the victim’s device, and redirecting payment for cybercriminal use.”

What is Decentralized Finance (DeFi)?

Decentralized Finance allows the Ethereum cryptocurrency system to lend money, buy insurance and trade assets in ways other financial systems currently perform, but without the use of intermediaries such as banks. This system works primarily through Ethereum. People offer “smart contracts” stored in the blockchain.

The contracts have simple specific terms, which allow those who accept them to have a concrete agreement. Using DeFi and a decentralized finance application (dApp), a consumer enters their loan needs and an algorithm matches the needs with a loan with acceptable terms. The consumer would need to agree to those terms to receive the loan.

This system is still in its infancy. Problems include the volatility in prices and regulatory issues. Although this system shows much promise, there are few reports discussing successful uses of this technology in fields outside cryptocurrency. Reports indicate over the last two years, the amount of money deposited at DeFi services has spiked from just $500 million to $247 billion. And more than $10 billion was stolen from them in 2021.

What are stablecoins and other types of cryptocurrencies?

The wide swings in the value of cryptocurrency are an issue. One solution is to attach the coins to a fiat currency such as the dollar. This is being explored, and the U.S. government issued a report framing how this might work and the necessary regulations.

There are now hundreds of other types of cryptocurrencies. All operate on blockchain and there is a lure to get in on the ground floor for maximum appreciation like Bitcoin. In addition, the Department of Justice (DOJ) reports that some are more difficult to trace than others.

What are Central Bank Digital Currencies (CBDCs)?

There is much discussion about governments having to issue CBDCs, digital currencies which would be backed by central banks. Some 91 countries reportedly are examining this possibility. China banned cryptocurrency, and reportedly is working on one tied to the Yuan for internal purposes in China. The U.S. Federal Reserve recently issued a policy paper on the subject. The hope is that these cryptocurrencies could simplify and expedite financial transactions.

The paper expresses serious concerns about crime surrounding the effort and would require “robust rules” that address money laundering and terrorist financing. These transactions would require record keeping and reporting requirements.

Is cryptocurrency “real” money?

Money, as we know it, has value in its own right. It may represent the right to tangible goods, and it is backed by a government. Paper dollar bills have little inherent value but are backed by the full faith and credit of the United States government. Paper money is used to pay all debts, public and private. The U.S. Treasury holds real assets, such as gold. Banks are backed by collateral assets such as real estate or stock in companies. There is no collateral backing cryptocurrency.

This all works when people have confidence in the monetary system. If people lose confidence, the system could collapse. In the 1600s the Dutch financial system was the most powerful in Europe. Speculation grew in tulip bulbs, and prices increased to dizzying heights. However, this “tulip bubble” crashed, costing many their life savings.

The Bank of England warned cryptocurrency could become worthless. Some have suggested the entire system is little more than a Ponzi scheme.

Is cryptocurrency protected by financial systems?

There are many safeguards and regulations built into standard financial systems to remedy abuses or other problems experienced throughout history. Despite the efforts of regulators to apply those safeguards to cryptocurrency worldwide, many do not apply or are not followed. This adds increased risks.

Two common protections do not apply to cryptocurrency:

  • Bank deposits are backed by the Federal Deposit Insurance Corporation (FDIC). If a bank makes a bad loan, the owners embezzle funds, or the bank is robbed, you are insured, and your money is protected.
  • Credit cards offer chargeback protection. If you buy something over the internet with your credit card and scammers do not send anything or send counterfeit goods, you can contact your bank and get your money back. The credit card system holds a reserve account of  money, and they can assess fines or take some of that money.


Criminals use Bitcoin and other cryptocurrency to support enormous amounts of criminal conduct. Because this conduct can involve huge sums of money and because some actions affect the stability of the cryptocurrency market, they deserve mention. Chainalysis reports $14 billion was lost to cryptocurrency fraud in 2021. This is double the $7.8 billion lost in 2020. DOJ details the types of criminal conduct involved in cryptocurrency markets and sketched out efforts to combat it.

Darknet marketplaces operate in parts of the Internet not accessible by search engines. These markets allow criminals to buy and sell illegal drugs, firearms, child pornography, counterfeit passports and other documents. Payment for these goods and services is mainly in cryptocurrency. DOJ is concerned about some “anonymity enhanced cryptocurrencies” that are difficult to track with non-public blockchains like Monero, Zcash, and Dash.

DOJ has acted against some of these dark web markets. In 2017, DOJ indicted a Russian and a large digital currency exchange for laundering $4 billion in illicit proceeds from ransomware, hacks, and narcotic sales. In 2019, DOJ indicted the owners of DeepDotWeb, a site that facilitated money payments for fentanyl, heroin, crystal meth, firearms, hacking tools, and stolen credit cards using cryptocurrency. One member was sentenced to prison. Similarly, the Government Accountability Office (GAO) reported cryptocurrency markets are increasingly used to fund sex trafficking operations and to buy and sell illegal drugs.

Fake websites are used by scammers who often send “phishing” emails impersonating real banks and other organizations which ask victims to “confirm” their log in information. This happens to cryptocurrency wallets and now it has spread to Google. Victims searching Google for a cryptocurrency app such as find a site for When they set up a wallet on the fake website, which looks quite professional and authentic, they unwittingly transfer their money into a scammer-owned wallet. Reports from the fall of 2021 show fraudsters used these tactics and stole $500,000.

Rug pulls are another major form of fraud in the cryptocurrency ecosystem. In this scheme, users find investors who provide financial support for new cryptocurrency projects by trading in their cryptocurrency to fund a new kind of token, anticipating expansion and value appreciation. These new tokens are created on the Ethereum blockchain and listed on decentralized exchanges. Sometimes the new type of cryptocurrency does not really exist, and the investors lose all their money. Chainalysis reports rug pulls accounted for 37% of all cryptocurrency scam revenue in 2021.

The Squid Game rug pull is an example. Developers launched a new token following the popular Netflix series and claimed the tokens could be used on online games then traded for other types of cryptocurrencies. The token’s developers took an estimated $3.3 million.

Money laundering is a concern of law enforcement in the cryptocurrency field. Through various means, criminals can transfer cryptocurrency through a variety of other cryptocurrencies and into fiat money. This conduct can include tax evasion and disguising criminal profits. In 2021 DOJ got a guilty plea in a case against Helix, which used mixers and tumblers to launder over $300 million from narcotics and other criminal transactions.

Rogue nations can also use this system to evade financial sanctions. For example, the U.S. issued sanctions against a Russian exchange that laundered money for ransomware and other crimes.

Stolen cryptocurrency and hacking are common. In 2021, Chainalysis reports $3.2 billion in cryptocurrency stolen, with $2.3 billion taken from DeFi protocols, a 516% increase from 2020. Other kinds of large- scale thefts occur in cryptocurrency markets. In 2021, Thodex, a large centralized exchange, disappeared after the exchange stopped investors from withdrawing funds. The result: a loss of $2 billion in cryptocurrency. Pakistanis recently lost $100 million in investments in a local Bitcoin exchange.

Hackers also direct their efforts to cryptocurrency exchanges. Reports show hackers attacking cryptocurrency exchanges and DeFI platforms stole $4 billion in 2021. Hackers from North Korea reportedly stole $400 million by hacking centralized exchanges. There are many more cases where cryptocurrency exchanges have been hacked and money stolen. In February 2022, the U.S. announced the arrest of two people for laundering $3.6 billion in cryptocurrency stolen in an earlier hack of a cryptocurrency exchange.


Cryptocurrency investment fraud

As long as people have invested money, there has been fraud. Cryptocurrency simply opens new opportunities for the repackaging of common investment frauds. With the development of new types of cryptocurrencies after the success of Bitcoin, there are more opportunities for investment fraud. Various investor protections developed through government regulation are less effective to those who are victims of this type of fraud.

Shanell works in the finance department of a university in St. Louis. In the summer of 2021, she heard about making money from Bitcoin investing. She watched a YouTube video about how Bitcoin investments work and noticed several comments on the video by people claiming that they made money successfully with Graham S. Cassidy Trading Services. Shanell reached out through WhatsApp and contacted Graham. Shanell was told to buy Bitcoin through Cash App and send $1,500. Though it stretched her financially, she sent the money. After ten days, she received a screenshot that showed her account increased to $7,345.56.

When Shanell decided to withdraw her earnings, she was first told that she had to pay a 10% commission of $734.56 and then a broker’s fee of $812.45. After she paid both, an email requested an additional $1,167.88 to withdraw her money, which she did not pay. Shanell concluded it was a scam and reported it to BBB.

Though large investors lose large sums, these scams are increasingly aimed at the public and small investors. Investment frauds are a major portion of cryptocurrency reports to BBB Scam Tracker, doubling between 2019 and 2021. In addition, both the FTC and the CAFC report a substantial number of cryptocurrency investment complaints and millions of dollars lost to these schemes.

The Chairman of the U.S. Securities and Exchange Commission (SEC) recently testified to Congress describing cryptocurrency investment field as the “wild west” riddled with fraud and investor risk. The SEC issued a warning about this topic. State securities regulators similarly expressed serious concerns about investment in cryptocurrency, as have securities regulators in Canada.


Romance scams are one of the costliest frauds operating around the world. For 2020, the FBI’s IC3 reported they were second in reported losses only to Business Email Compromise frauds in terms of money lost. For the first six months of 2021 the IC3 reported 1,800 romance scam complaints with losses of $133.4 million. The FTC recently reported that romance scam victims reported losses of $547 million in 2021, the most of any fraud category.

The nature of romance scams is explained in the BBB’s romance scam study. Scammers using fake profiles and stolen photos contact individuals on dating sites or social media, and then quickly move victims to other methods of communication. They groom victims and build trust with them for several months, and then extract money from them by feigning an illness or another emergency, claiming a temporary need for funds due to a business issue, or for the financial means to visit the victim in person, often claiming marriage plans.

Over the past two years, romance scammers began convincing victims to invest in cryptocurrency. The CAFC reports in 2018 and 2019 they had 85 romance victims who paid with cryptocurrency. In 2020, this rose to 178. In May of 2021, an analysis by the FTC found in the previous six months 20% of lost money through romance scams was to cryptocurrency investments. And for 2021, the FTC had 2,985 reports of romance scams where money was lost through cryptocurrency, with losses of $139 million.

Both the FBI and Interpol report scammers are asking romance scam targets to download bogus cryptocurrency apps, assuring them of great returns on the investments. These sophisticated fake apps pretend to be from the Apple App store or from Google Play. The apps allow victims to check the bogus online accounts and have live customer service personnel to answer questions. Victims may be allowed initially to take out money, but then are encouraged to invest more. Some romantic interests claim to have invested, which provides a sense of shared risk and legitimacy. Online accounts appear to show funds rapidly increasing in value. But if the victim tries to remove money, they are locked out of the account money unless they pay additional fees. The romantic interest disappears, and the money is gone.


Investment fraud reported to BBB

BBB Scam Tracker Reports include victims of Ponzi schemes, mining investments and rug pulls. However, most reports assert these investment scams began on social media and some report the victim relied on the endorsement of a celebrity when they became involved.

Ponzi schemes

Ponzi schemes, named for Charles Ponzi and most recently made newsworthy by Bernie Madoff, offer initial investors high returns on their investment. These earnings draw in more new investors, whose money is used to pay the returns to early participants, not from any increase in value. But at some point, there is not enough new money coming in to pay investors, and the system collapses. The SEC has warned investors about this type of scam. In one case the SEC alleged that cryptocurrency lending platform BitConnect was a Ponzi scheme which cost investors $2 billion. The owner of BitConnect has since been indicted.

Initial Coin Offerings (ICOs)

With ICOs, some investors are interested in funding the launch of a new kind of cryptocurrency token and are led to believe they can get in on the ground floor with such an investment. Often these are just rug pulls, and the organizers simply disappear with the money from investors.

Bitcoin mining

In these scams, victims are encouraged to invest in Bitcoin mining. The Texas securities commissioner sued one fraudulent operation that promised a 10% return within 30 days.

Keishae lives in the Bay Area and works at a hospital, though she is planning to go back to school soon. In September 2021, she got a message from a person she thought was a friend on Facebook. The “friend” told her that she could instantly increase an investment by ten times with Bitcoin through Coinbase. She initially sent $50 through Cash app to the wallet the friend specified. She got a screen shot showing that the money increased to $500, and when she asked about withdrawing her money she was told there was a $200 processing fee, but that she would also get ten times the investment on that money. She complied and was told there was still another processing fee to be paid. This continued, and eventually Keishae had paid $1,300. She was never able to get any money back. She complained to the “friend” on Messenger and started receiving X-rated videos. She reached out directly to her Facebook friend and learned she had not really been communicating with her. The account was hacked. She complained to BBB and called the police, who told her to go to the FBI. She filed a complaint online with the FBI.

Social Media

BBB Scam Tracker data show that social media is the most common place victims find cryptocurrency scams. The FTC reports that 25% of all scams in 2021 began on social media.

In a common tactic, scammers impersonate friends on Facebook who then tell victims about their success in making money and urge victims to follow suit. Other common Facebook posts tell people they can quickly double their money or steer people to “investment advisors.”

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