NEW YORK, NY – April 21, 2026 – Anton Peraire-Bueno, a 24-year-old Massachusetts Institute of Technology (MIT) graduate, has been formally charged by the U.S. Department of Justice in a groundbreaking cryptocurrency fraud and money laundering case involving the alleged theft of $25 million from the Ethereum blockchain. The charges, unsealed following his arrest in May 2024, accuse Peraire-Bueno and his brother, James Peraire-Bueno, of conspiracy to commit wire fraud, wire fraud, and conspiracy to commit money laundering.
The Charges Against Anton Peraire-Bueno
Anton Peraire-Bueno stands accused of orchestrating a sophisticated scheme that allegedly exploited vulnerabilities within the Ethereum blockchain’s Maximal Extractable Value (MEV) ecosystem. Prosecutors contend that Peraire-Bueno and his 29-year-old brother, also an MIT alumnus, meticulously planned an exploit over several months. Their alleged method involved manipulating pending transactions to redirect valuable cryptocurrency from victim traders to their own accounts, replacing it with “effectively worthless, illiquid junk crypto.” This alleged maneuver, executed in a mere 12-second window, represents a novel form of digital asset theft.
The alleged fraud, which took place in April 2023, involved a three-phase approach. Initially, the brothers reportedly used “bait transactions” to identify and analyze the automated trading bots of three target traders. They then created an “irresistible bundle of crypto trades” to lure these bots. The critical third phase, dubbed “The Switch,” involved exploiting a software vulnerability during the brief period between a transaction’s initiation and its official recording on the blockchain, allowing them to alter private transactions and divert $25 million in legitimate funds.
Scale of the Crime and Investigation
Approximately $25 million in cryptocurrency was allegedly stolen in the exploit. While the scheme targeted three victim cryptocurrency traders, only one, David Yakira, has publicly come forward as an alleged victim. The investigation, spearheaded by IRS-CI New York’s Cyber Investigations Unit with support from U.S. Customs and Border Protection and the New York City Police Department, uncovered the alleged fraud through the diligent work of Department of Justice prosecutors and IRS agents.
Anton Peraire-Bueno, a Boston resident, graduated from MIT in February 2024, having studied computer science and engineering. His brother, James, holds multiple degrees from MIT, including an M.S. in aeronautics and astronautics. Their specialized skills in these highly technical fields are alleged to have been central to their ability to execute such a complex blockchain manipulation. Shell companies and various private cryptocurrency addresses and foreign exchanges were allegedly used to conceal their identities and launder the stolen funds between April and June 2023.
“This case highlights the evolving frontier of financial crime, where highly sophisticated technical skills are being allegedly leveraged to exploit the intricate mechanisms of decentralized finance. It underscores the urgent need for robust security and clear regulatory frameworks in the cryptocurrency space.”
What Happens Next
Anton Peraire-Bueno’s legal journey has seen significant developments. Following their arrest in May 2024, the brothers were presented before U.S. Magistrate Judges in Boston and New York. The prosecution commenced in New York on October 15, 2025. However, after a four-week trial, the jury was deadlocked, leading U.S. District Judge Jessica Clarke to declare a mistrial on November 7, 2025. Prosecutors immediately requested a new trial, initially aiming for early 2026. A hearing on March 13, 2026, addressed the brothers’ request to dismiss all charges due to insufficient evidence. The judge indicated she would rule on this motion before scheduling a new trial, which would not begin before November 2026.
Anton Peraire-Bueno was released on a $250,000 personal recognizance bond, co-signed by two financially responsible individuals. Conditions of his release include prohibitions on trading securities or crypto and engaging in blockchain validation. If convicted on all counts, Anton Peraire-Bueno faces a maximum penalty of 20 years in prison for each charge. While specific asset freezes were not detailed, authorities did seize a “substantial number of devices” during the arrests.
Protecting Yourself in the Digital Frontier
This case serves as a stark reminder of the sophisticated risks present in the cryptocurrency market. The alleged actions of Anton Peraire-Bueno and his brother highlight the potential for highly technical exploits within seemingly secure blockchain environments. The defense’s argument that their actions fell within accepted “bot-eat-bot” trading practices underscores the regulatory ambiguity that still permeates decentralized finance, making it challenging for traditional legal frameworks to keep pace with technological innovation. Investors and traders in the crypto space should remain vigilant, conduct thorough due diligence on platforms and trading strategies, and be wary of unusually high-return offers or sudden, unexplained transaction anomalies. The alleged online searches by the Peraire-Bueno brothers for phrases like “how to wash crypto” and “top crypto lawyers” indicate a conscious awareness of the illicit nature of their alleged activities, serving as a significant red flag for any potential fraud.
