Blockchain & Cryptocurrency
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Cryptocurrency Fraud
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Fraud Management & Cybercrime
Also: Trader Loses $21M on Hyperliquid, Fund for Tornado Cash Dev Defense

Every week, Information Security Media Group rounds up cybersecurity incidents in digital assets. This week, “Bitcoin Jesus” paid $50M to settle tax charges, a trader lost $21M after private key compromise on Hyperliquid, Ethereum Foundation and Keyring launched a fund for Tornado Cash developers, India started probe into Binance traders for alleged crypto tax evasion, hackers’ $32.5M dump marked the largest crypto liquidation and New York City launched the nation’s first mayoral office for digital assets and blockchain.
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Roger Ver Pays $50M to Settle Tax Charges
Early bitcoin investor Roger Ver, known as “Bitcoin Jesus,” entered a deferred prosecution agreement with the U.S. Department of Justice to settle federal tax charges. Ver paid nearly $50 million in back taxes, penalties and interest for failing to report his bitcoin holdings after renouncing U.S. citizenship in 2014. After payment, prosecutors moved to dismiss the indictment against him.
Ver admitted he willfully omitted a portion of his bitcoin assets when filing expatriation-related tax returns in 2016, cutting his tax liability by more than $16.8 million.
Trader Loses $21M After Private Key Compromise on Hyperliquid
A trader lost about $21 million on the decentralized exchange Hyperliquid after hackers compromised a private key, said blockchain security firm PeckShield. Onchain data shows the attacker transferred the stolen assets to ethereum.
A private key acts as the cryptographic proof of wallet ownership, granting full control over stored funds. When compromised, it enables attackers to move assets, similar to having a bank vault’s master code. PeckShield has not yet determined how the private key was exposed or whether the incident stemmed from phishing, malware or another exploit method.
Ethereum Foundation, Keyring Launch Fund for Tornado Cash Developers’ Legal Defense
The Ethereum Foundation and Keyring Network launched a joint initiative to fund legal defenses for Tornado Cash developers Roman Storm and Alexey Pertsev, aiming to “pioneer open-source legal defense funding.”
Keyring said protocol fees from the first two months of its ZkVerified permissioned vaults will be directed to the defense fund. The Ethereum Foundation said the effort ties the growth of new financial tools to the protection of privacy-focused developers.
Storm was convicted this summer on a money-transmitting charge, though jurors deadlocked on money laundering and sanctions counts. Pertsev was sentenced last year in the Netherlands to more than five years for facilitating $1.2 billion in laundering through Tornado Cash. Both are appealing their cases.
India Probes Binance Traders for Alleged Crypto Tax Evasion
Indian tax authorities are reportedly investigating more than 400 high-net-worth Binance traders suspected of evading taxes. The probe covers trades conducted between 2022 and 2025, with the Central Board of Direct Taxes instructing city departments to report actions by Oct. 17, reported The Economic Times.
Crypto in India faces high taxation: a 1% upfront transfer withholding, 30% on profits, plus surcharge and a 4% cess, which can push the effective rate to 42.7% for top earners.
Hackers’ $32.5M Dump Marks Largest Crypto Liquidation
Hacker-linked wallets dumped 8,638 ETH worth about $32.5 million during a weekend crypto market crash, marking the largest liquidation event in crypto history, said onchain analytics provider Lookonchain. Following the price rebound, the same wallets repurchased 7,816 ETH, incurring an estimated $5.5 million loss. Lookonchain cited Arkham-labeled “hacker” addresses, but did not identify the actors behind them.
The sell-off coincided with one of the market’s sharpest deleveraging events, as the total crypto market cap fell more than 9% on Oct. 10 after the White House announced 100% tariffs on China. Analysts reported forced liquidations exceeding $10 billion, with some estimates surpassing $19 billion.
NYC Launches First Mayoral Office for Digital Assets and Blockchain
Embattled New York City Mayor Eric Adams established the nation’s first mayoral office dedicated to digital assets and blockchain, aiming to promote responsible adoption of these technologies. The Office of Digital Assets and Blockchain will be led by Moises Rendon, who has advised the city on crypto initiatives.
Adams said the office will support economic growth, attract talent, expand opportunities for underbanked communities and make government services more user-friendly. It will coordinate between the crypto industry and municipal authorities, while engaging with state and federal agencies to shape policies that encourage blockchain innovation within regulatory frameworks.
Adams halted in late September a re-election campaign, ensuring that his one term in office will likely be most remembered for a corruption case dropped by federal prosecutors in what a U.S. federal district judge said looked like a bargain between the mayor and the Trump administration over immigration enforcement.
