10 crypto scams and the warning signs each one missed |
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10 crypto scams and the warning signs each one missed
These 10 crypto scams, from OneCoin to FTX and pig butchering, each showed warning signs that investors can learn to spot before the next fraud
Most of the cases in this list showed their problems well before victims lost money. Each one carried a feature an outsider could have checked. Some paid members for recruiting friends. Some promised returns far above what the broader market paid. Others sold a token that buyers could not resell.
This piece looks at 10 crypto scams and failures since 2014 and the warning signs each one showed. The cases cover several distinct models of fraud. OneCoin, BitConnect and PlusToken relied on multilevel marketing, paying members to bring in new money. A July 2020 hijacking of high-profile Twitter $TWTR accounts promised to double any bitcoin sent to an address. The Squid Game token was a rug pull, in which developers abandon a project and leave buyers holding tokens they cannot sell.
Thodex, a Turkish exchange, halted withdrawals in April 2021. The 2022 failures of TerraUSD, Celsius Network and FTX involved established names in the industry rather than obscure startups. Pig butchering operations pair long-running online friendships or romances with fake trading platforms.
A small set of signals recurs across the list. Pay tied to recruitment is one. Guaranteed or outsized yields are another. So are assets that cannot trade on an open market, the absence of a public ledger, blocked withdrawals and vague answers about where customer money goes. A public blockchain lets anyone verify transactions. A coin without one asks holders to trust a company's private records instead.
These cases are a selection, not a ranking. They are not ordered by losses, and the list does not claim to cover every major fraud in the sector. The slides run roughly in chronological order, from schemes promoted in the mid-2010s to scams still operating today.
Each slide explains what the operation offered, what happened next and what authorities did afterward, where the public record is clear. Outcomes vary. Some founders received prison sentences, while others remain fugitives. The warning signs are the part that carries forward. Several can be checked before any money moves. Does a token trade openly? Does a platform appear on a regulator's register? Can anyone explain where the returns come from?
OneCoin: the crypto Ponzi scheme with no real blockchain
OneCoin was marketed from about 2014 as a cryptocurrency, yet it never ran on a working blockchain. The scheme took in more than $4 billion, according to U.S. prosecutors. Its three warning signs were visible to anyone who asked how the coin actually worked.
A blockchain is a shared record of transactions. On a public network such as bitcoin, anyone can download that record or look up a transaction through a block explorer. The ledger is the product.
OneCoin gave members no public ledger to inspect. Balances appeared in accounts the company ran. Members had to trust the figures they were shown, with no independent way to confirm that any transaction had taken place.
The second warning sign was the lack of an open market. A genuine cryptocurrency can usually be bought and sold on exchanges, where buyers and sellers set the price between them. OneCoin could not be traded that way. Its value was whatever the organization said it was. Holders had no outside route to turn their coins into cash. An asset that only its issuer can value gives investors no external check on that valuation.
The third sign was the pay structure. Members earned money for recruiting other people into the scheme. That arrangement is typical of a Ponzi scheme. Early participants are paid with money from later ones. The operation therefore needs a constant flow of new recruits. When recruitment slows, the payments stop. Compensation tied to signing people up, rather than to a product or trading activity, suggests that new deposits are the real source of returns.
The legal fallout has stretched across years. OneCoin founder Ruja Ignatova disappeared in October 2017. The FBI added her to its Ten Most Wanted list in June 2022. Co-founder Karl Sebastian Greenwood was sentenced to 20 years in prison in December 2023.
The OneCoin record leaves investors with a short test for any new token. Ask where the ledger is and whether anyone outside the company can read it. Ask where the coin trades and who sets its price. Ask whether the money comes from real activity or from new recruits. OneCoin could not pass any of those three checks.
BitConnect's lending bot and its promise of fixed daily returns
BitConnect asked investors to lend it money so a trading "lending bot" could produce fixed daily returns. It never explained how the bot earned those returns, and it paid members to recruit others. Both traits are common in crypto Ponzi schemes.
The pitch presented a lending product as a trading operation. Members handed over funds, and BitConnect said its software would trade the cryptocurrency market for them. In return, lenders were told to expect a fixed payout every day. The company did not show the bot's trades, its strategy or the source of its profits.
That gap mattered because trading does not run on a schedule. Crypto prices can swing sharply in either direction, sometimes within hours. Any strategy that trades those markets will have losing days and losing weeks. A product that promises the same daily gain in every condition describes something no trading strategy can deliver.
When returns are fixed and the profit source is hidden, money from newer customers is the likeliest source. That is the core mechanic of a Ponzi scheme. Early participants receive payouts funded by later deposits. Those payouts look like proof that the system works, and they draw in more deposits. The arrangement survives only while new money arrives faster than withdrawals.
BitConnect's referral program fed that cycle. Members earned rewards for bringing in new lenders, which turned customers into promoters. Pay tied to recruitment shifts attention away from whether an investment produces income. It focuses participants on how many people they can sign up. It also means many of the loudest........