{
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  "schemaVersion": "1.0.0",
  "id": "bitcoin-ponzi-schemes-and-scams",
  "canonical": "https://degreesofsatoshi.com/encyclopedia/bitcoin-ponzi-schemes-and-scams/",
  "collection": "bitcoin",
  "title": "Bitcoin Ponzi schemes and scams: a short history, and how to spot the next one",
  "description": "From Bitcoin Savings and Trust in 2011 to PlusToken, BitConnect and OneCoin: what the court and regulator records say, and the shapes these frauds keep taking.",
  "aliases": [
    "bitcoin Ponzi scheme",
    "bitcoin scams history",
    "Bitcoin Savings and Trust",
    "PlusToken scam",
    "BitConnect",
    "OneCoin",
    "crypto giveaway scam",
    "how to spot a crypto scam"
  ],
  "dates": {
    "published": "2026-09-23",
    "modified": "2026-10-02",
    "verified": "2026-10-02T16:01:48.343Z",
    "dataAsOf": null
  },
  "authorship": {
    "publisher": "Degrees of Satoshi editorial project",
    "process": "AI-assisted research and drafting with a separate automated source-verification pass; no external expert or named human review is implied."
  },
  "quickAnswer": {
    "text": "Crypto fraud can use familiar mechanisms: fabricated investment returns, recruitment rewards, impersonation and promises to double a deposit. The SEC’s Bitcoin Savings and Trust and BitConnect cases and the OneCoin criminal case document examples, with different assets and legal findings. Those cases concern schemes using crypto claims or payments; they do not by themselves show a break in Bitcoin’s consensus rules.",
    "claimId": "bitcoin-ponzi-schemes-and-scams-quick-answer",
    "sourceIds": [
      "doj-shavers",
      "doj-bitconnect",
      "irs-onecoin",
      "ftc-spotlight"
    ]
  },
  "keyFacts": [
    {
      "label": "Bitcoin Savings and Trust",
      "value": "DOJ’s criminal-case sentencing account describes approximately 146,000 BTC fraudulently obtained; this is a differently scoped measure from gross deposits alleged in the SEC case",
      "sourceIds": [
        "doj-shavers"
      ],
      "id": "bitcoin-savings-and-trust",
      "claimId": "bitcoin-ponzi-schemes-and-scams-fact-bitcoin-savings-and-trust"
    },
    {
      "label": "Shavers sentence",
      "value": "18 months in prison on 21 July 2016, following a September 2015 guilty plea",
      "sourceIds": [
        "doj-shavers"
      ],
      "id": "shavers-sentence",
      "claimId": "bitcoin-ponzi-schemes-and-scams-fact-shavers-sentence"
    },
    {
      "label": "BitConnect plea",
      "value": "Glenn Arcaro pleaded guilty on 1 September 2021 to participating in a scheme described as causing over $2 billion in investor losses",
      "sourceIds": [
        "doj-bitconnect"
      ],
      "id": "bitconnect-plea",
      "claimId": "bitcoin-ponzi-schemes-and-scams-fact-bitconnect-plea"
    },
    {
      "label": "OneCoin",
      "value": "Karl Greenwood was sentenced to 20 years on 12 September 2023; authorities describe more than $4 billion obtained from over 3.5 million victims",
      "sourceIds": [
        "irs-onecoin"
      ],
      "id": "onecoin",
      "claimId": "bitcoin-ponzi-schemes-and-scams-fact-onecoin"
    },
    {
      "label": "Impersonation reports",
      "value": "The FTC reported over $2 million sent to Elon Musk impersonators in the six months preceding its May 2021 report; reports are not a complete census",
      "sourceIds": [
        "ftc-spotlight"
      ],
      "id": "impersonation-reports",
      "claimId": "bitcoin-ponzi-schemes-and-scams-fact-impersonation-reports"
    }
  ],
  "prerequisites": [],
  "sections": [
    {
      "id": "ponzi-mechanism",
      "heading": "A quoted return is not proof of earnings",
      "paragraphs": [
        "A Ponzi scheme uses new participants’ deposits to pay earlier participants while representing those payments as investment returns. A functioning withdrawal for one customer can therefore coexist with fraud. The source of the payment matters more than a screenshot of a balance.",
        "The Justice Department’s Shavers sentencing account describes this mechanism in Bitcoin Savings and Trust. It records an 18-month sentence on 21 July 2016 and approximately 146,000 BTC fraudulently obtained in the criminal case. Do not combine that measure with the separate SEC gross-deposit allegation as if both counted the same thing."
      ],
      "sourceIds": [
        "doj-shavers"
      ]
    },
    {
      "id": "trading-story",
      "heading": "A trading-bot story can conceal the same mechanism",
      "paragraphs": [
        "In September 2021, BitConnect promoter Glenn Arcaro pleaded guilty to participating in a scheme that the Justice Department described as defrauding investors of more than $2 billion. The release discusses false claims about proprietary trading technology and payments to promoters.",
        "This illustrates two questions for any claimed yield: what activity produces the return, and what records let someone inspect it? A token name, an automated-trading story or a referral payment does not answer those questions. See [incentives versus earned fees](/encyclopedia/incentives-and-earned-fees/) for the accounting distinction."
      ],
      "sourceIds": [
        "doj-bitconnect"
      ]
    },
    {
      "id": "onecoin",
      "heading": "A crypto label does not establish a cryptocurrency",
      "paragraphs": [
        "The OneCoin sentencing record describes a purported cryptocurrency sold through a multilevel marketing network. Authorities said the scheme took more than $4 billion from more than 3.5 million victims; Karl Greenwood received a 20-year sentence in September 2023.",
        "OneCoin should not be described as a Bitcoin consensus failure. The issue in that record is the business’s false representations and sale of a purported asset. The existence of a company account or quoted token value does not establish a public ledger or a redeemable balance."
      ],
      "sourceIds": [
        "irs-onecoin"
      ]
    },
    {
      "id": "impersonation",
      "heading": "Giveaway impersonation uses authority, not a protocol flaw",
      "paragraphs": [
        "The FTC’s May 2021 consumer-report analysis describes impersonators promising to multiply cryptocurrency sent to them. It reports more than $2 million sent to Elon Musk impersonators over the preceding six months.",
        "Those are reported losses for a stated window, not a complete measure of all fraud. The general mechanism is simpler than a contract exploit: a victim authorizes a payment based on a false claim about who is asking and what will happen next. A valid on-chain transaction can implement a fraudulent promise."
      ],
      "sourceIds": [
        "ftc-spotlight"
      ]
    }
  ],
  "faq": [
    {
      "question": "Does a successful withdrawal prove an investment is genuine?",
      "answer": "No. A Ponzi scheme can pay earlier participants using newer deposits. The payment shows that money was transferred, not that a claimed investment generated a profit.",
      "sourceIds": [
        "doj-shavers"
      ]
    },
    {
      "question": "Are these the same as attacks on Bitcoin?",
      "answer": "The cited cases concern businesses, misrepresentations and payment instructions. They do not establish a break in Bitcoin’s transaction-validation rules. A fraudster can receive a valid transaction without exploiting the protocol.",
      "sourceIds": [
        "doj-shavers",
        "doj-bitconnect",
        "irs-onecoin"
      ]
    }
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      "statement": "Crypto fraud can use familiar mechanisms: fabricated investment returns, recruitment rewards, impersonation and promises to double a deposit. The SEC’s Bitcoin Savings and Trust and BitConnect cases and the OneCoin criminal case document examples, with different assets and legal findings. Those cases concern schemes using crypto claims or payments; they do not by themselves show a break in Bitcoin’s consensus rules.",
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          "locator": "Reports nearly 7,000 crypto investment scam complaints and more than $80 million lost since October 2020, a $1,900 median loss, more than $2 million sent to Elon Musk impersonators, the giveaway scam pattern and the FTC’s warning that guaranteed returns are always scams."
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      "scope": {
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      "evidenceStatus": "documented",
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        "notes": [
          "Checked DOJ criminal-case accounts, IRS OneCoin sentencing and FTC reported-loss data; distinguished allegations, pleas, sentencing, gross deposits and fraudulently obtained amounts."
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          "Checked DOJ criminal-case accounts, IRS OneCoin sentencing and FTC reported-loss data; distinguished allegations, pleas, sentencing, gross deposits and fraudulently obtained amounts."
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          "Checked DOJ criminal-case accounts, IRS OneCoin sentencing and FTC reported-loss data; distinguished allegations, pleas, sentencing, gross deposits and fraudulently obtained amounts."
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      "statement": "BitConnect plea: Glenn Arcaro pleaded guilty on 1 September 2021 to participating in a scheme described as causing over $2 billion in investor losses",
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          "locator": "1 September 2021 plea release: Arcaro admitted participation in a scheme defrauding investors of more than $2 billion; trading-bot representations and referral program."
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          "Checked DOJ criminal-case accounts, IRS OneCoin sentencing and FTC reported-loss data; distinguished allegations, pleas, sentencing, gross deposits and fraudulently obtained amounts."
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          "locator": "Records Karl Greenwood’s 20-year sentence, OneCoin’s 2014 launch in Sofia, the multi-level marketing model, more than $4 billion from more than 3.5 million victims, the “fake coins” and Ruja Ignatova’s status as a fugitive on the FBI’s Ten Most Wanted list."
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          "Checked DOJ criminal-case accounts, IRS OneCoin sentencing and FTC reported-loss data; distinguished allegations, pleas, sentencing, gross deposits and fraudulently obtained amounts."
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        {
          "sourceId": "source-9551d44a4c282193",
          "locator": "Reports nearly 7,000 crypto investment scam complaints and more than $80 million lost since October 2020, a $1,900 median loss, more than $2 million sent to Elon Musk impersonators, the giveaway scam pattern and the FTC’s warning that guaranteed returns are always scams."
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  "sources": [
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      "id": "irs-onecoin",
      "label": "Co-founder of multibillion-dollar cryptocurrency scheme “OneCoin” sentenced to 20 years in prison",
      "publisher": "IRS Criminal Investigation, republishing the U.S. Attorney’s Office for the Southern District of New York release",
      "issued": "2023-09-12",
      "url": "https://www.irs.gov/node/126321",
      "note": "Records Karl Greenwood’s 20-year sentence, OneCoin’s 2014 launch in Sofia, the multi-level marketing model, more than $4 billion from more than 3.5 million victims, the “fake coins” and Ruja Ignatova’s status as a fugitive on the FBI’s Ten Most Wanted list.",
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      "recordId": "source-9803e7e0c1173bdb",
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    {
      "id": "ftc-spotlight",
      "label": "Cryptocurrency buzz drives record investment scam losses (Data Spotlight)",
      "publisher": "U.S. Federal Trade Commission",
      "issued": "2021-05-17",
      "url": "https://www.ftc.gov/news-events/data-visualizations/data-spotlight/2021/05/cryptocurrency-buzz-drives-record-investment-scam-losses",
      "note": "Reports nearly 7,000 crypto investment scam complaints and more than $80 million lost since October 2020, a $1,900 median loss, more than $2 million sent to Elon Musk impersonators, the giveaway scam pattern and the FTC’s warning that guaranteed returns are always scams.",
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      "recordId": "source-9551d44a4c282193",
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    {
      "id": "doj-shavers",
      "label": "Texas man sentenced for operating Bitcoin Ponzi scheme",
      "publisher": "US Department of Justice",
      "url": "https://www.justice.gov/usao-sdny/pr/texas-man-sentenced-operating-bitcoin-ponzi-scheme",
      "note": "21 July 2016 sentencing release: 18 months; approximately 146,000 BTC fraudulently obtained in the criminal case; old investors paid with new deposits.",
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    {
      "id": "doj-bitconnect",
      "label": "Director and promoter of BitConnect pleads guilty",
      "publisher": "US Department of Justice",
      "url": "https://www.justice.gov/usao-sdca/pr/director-and-promoter-bitconnect-pleads-guilty-global-2-billion-cryptocurrency-scheme",
      "note": "1 September 2021 plea release: Arcaro admitted participation in a scheme defrauding investors of more than $2 billion; trading-bot representations and referral program.",
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  ],
  "related": {
    "articles": [
      "ftx-collapse",
      "is-bitcoin-anonymous",
      "how-to-read-a-block-explorer",
      "bitcoin-wallets-explained",
      "private-keys-and-seed-phrases"
    ],
    "dossiers": [
      "mt-gox-collapse",
      "bitcoin-exchanges-history"
    ],
    "wallets": [
      "plustoken-btc-collection-addresses",
      "quadrigacx-defunct"
    ]
  },
  "revisionHistory": [
    {
      "date": "2026-09-23",
      "kind": "published",
      "summary": "Initial Bitcoin encyclopedia entry at this permanent URL."
    },
    {
      "date": "2026-10-02",
      "kind": "correction",
      "summary": "Revised direct answer to preserve source scope and qualifications. Replaced unsupported or stale facts with scoped primary-source facts. Reconciled the full explanation with directly supporting primary records."
    },
    {
      "date": "2026-10-02",
      "kind": "publishing-format",
      "summary": "Added reusable claims, explicit source locators, and matching Markdown and JSON. This publishing change does not itself establish factual verification."
    }
  ],
  "citation": "Degrees of Satoshi editorial project. “Bitcoin Ponzi schemes and scams: a short history, and how to spot the next one.” Published 2026-09-23; updated 2026-10-02. https://degreesofsatoshi.com/encyclopedia/bitcoin-ponzi-schemes-and-scams/"
}