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Federal grand jury indicts Sioux Falls investor Benjamin Paul Wiener on 29 counts, alleging $20 million losses through eight companies and crypto exchanges.
Benjamin Paul Wiener, a Sioux Falls crypto investor, was indicted on 29 federal counts—including wire fraud and money laundering—allegedly siphoning about $20 million from investors via eight interlinked entities and cryptocurrency exchanges. The case underscores ongoing law‑enforcement focus on crypto‑related fraud and sets a trial date for mid‑September.
| At a glance | |
|---|---|
| Alleged loss | ~$20 million across dozens of victims |
| Entities used | 8 companies (e.g., Benaiah Capital LLC, Aslan Management LLC) |
| Charges | 29 counts: wire fraud, money laundering, bank fraud, aggravated identity theft |
| Trial date | September 15 (2025) |
Prosecutors say Wiener attracted investors in South Dakota and Minnesota by making materially false statements about his companies’ digital‑currency offerings, then funneled the money through banks and crypto exchanges to hide its origin and ownership. When earlier investors sought returns or funds ran low, Wiener allegedly recruited new investors to repay the prior ones and to cover personal expenses, a classic Ponzi‑like pattern. The Justice Department estimates the total investor loss at roughly $20 million [1].
In addition to the crypto scheme, the indictment alleges Wiener secured a $1 million line of credit from a Sioux Falls bank in April 2025 by falsifying documents and using another person’s personal identifying information without authorization. The government has not linked the credit‑line proceeds directly to the $20 million loss, treating the bank‑fraud and identity‑theft allegations as separate components of the 29‑count case [1].
A federal grand jury returned the indictment in June, and Wiener pleaded not guilty on July 10, after which he was released on bond pending trial. U.S. Magistrate Judge Veronica L. Duffy set the trial for September 15, giving prosecutors a window to present their case and victims a forum for potential restitution [1].
The indictment highlights the complexity of tracing funds that move between traditional banks and crypto exchanges, and it raises questions about the effectiveness of current regulatory frameworks in preventing similar schemes.
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AI-assisted synthesis by the TrendWatcher Editorial Desk · sourced from 5 outlets · Jul 21, 2026 · How we report
Prosecutors estimate the losses at approximately $20 million across dozens of victims.
Eight companies, including Benaiah Capital LLC and Aslan Management, LLC, were named in the indictment.
Joint operations involving the FBI, UAE, and Chinese authorities resulted in the arrest of hundreds of individuals and the shutdown of at least nine crypto scam centers.
More than $701 million in crypto linked to investment scams was frozen by the U.S. Scam Center Strike Force.
They claim blockchain provides a transparent, immutable record that can help trace illicit transactions, contrary to the notion that crypto is inherently used for illicit finance.