Crypto Investment Fraud & Ponzi Schemes
Guaranteed returns are a maths problem, and the maths always resolves the same way.
Investment fraud in crypto rarely needs a technical exploit. It needs a number that compounds faster than reality and an audience that has seen enough genuine upside to believe it.
The cases here run from classic pay-the-old-with-the-new schemes to funded projects that raised, delivered nothing and left quietly, and to payment mandates signed during what felt like routine onboarding. Different wrappers, one arithmetic.
Documented cases in detail
The self-deployed version is documented in our investigation into fake AI trading-bot tutorials that substitute a wallet-draining contract after showing the victim clean source code.
When the paperwork does the lying, the pattern matches the SEPA mandate scam that turns a forged bank authorisation into a crypto payout long before anyone checks the signature.
For how these vectors ranked against each other across a full year, see our 2025 crypto scam year in review, with the losses and tactics that defined it.
How it works
The promise
A fixed daily or weekly return, described as arbitrage, market making or an AI trading engine. Volatility is never mentioned.
The circulation
Early withdrawals are paid from later deposits. Real yield never exists; the dashboard is a spreadsheet with a chart on it.
The wall
Withdrawals slow, then require a fee, a tax, an upgrade. Deposits are still instant. That asymmetry is the whole story.
Investigations in this vector
RWA Rental Yield Fraud: The Rent That Pays Itself
Tokenised property platforms promise daily rent from buildings they do not own. The land registry, the missing Form D and one on-chain hop expose it.
Read the investigationHumanity Protocol $27M 'Hack': A Perfect Exit
Humanity Protocol blamed a 'compromised key' for a $27M $H drain. On-chain timing looks more like an insider exit than a hack.
Read the investigation€100M SEPA Scam: The 7% Commission That Costs Prison
A friend offers €7M to 'review paperwork.' €100M flows through your €20K/month business. Prosecutors call it laundering — you call it prison.
Read the investigationCrypto Ponzi Schemes: 5 Warning Signs Before Collapse
"1% daily guaranteed" = 100% scam. $40B lost since 2017. Learn the math that exposes every Ponzi, with real Telegram pitch screenshots.
Read the investigationRed flags
- Any return described as guaranteed, fixed or risk-free.
- Referral commissions that pay more than the underlying strategy plausibly could.
- Withdrawals gated behind a payment you must fund from outside.
- No verifiable counterparty, licence or on-chain proof of the strategy.
- A mandate, direct debit or recurring authorisation signed during onboarding.
If it already happened
- 1.Cancel any recurring mandate at the bank, not just in the platform's settings.
- 2.Do not pay the withdrawal fee — it is the scheme's last revenue line, not a route out.
- 3.Export the account history and all communications before access disappears.
- 4.Warn whoever referred you; in most schemes they are the next victim, not the operator.
Related vocabulary
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