New York Attorney General Targets Bitfinex and Tether in $850 Million Fraud Investigation

The cryptocurrency world was rocked on April 25, 2019, when New York Attorney General Letitia James announced that her office had obtained a court order against iFinex Inc., the parent company of both the Bitfinex cryptocurrency exchange and Tether Limited, the issuer of the widely used USDT stablecoin. The allegations were severe: Bitfinex had lost approximately $850 million in customer and corporate funds and subsequently used Tether’s reserves to cover up the shortfall.

The court filing sent immediate shockwaves through digital asset markets, with Bitcoin briefly plunging below $5,000 before staging a remarkable recovery. By April 28, the flagship cryptocurrency had not only reclaimed the $5,000 level but was exhibiting a curious price anomaly — a significant premium on Bitfinex compared to other major exchanges.

TL;DR

• New York AG Letitia James obtained a court order against Bitfinex (iFinex Inc.) and Tether Limited on April 25, 2019
• Allegations claim Bitfinex lost $850 million and used Tether reserves to cover the missing funds
• Bitcoin initially dropped below $5,000 to approximately $4,971 before recovering above $5,200
• A massive $300+ price premium emerged on Bitfinex versus other exchanges (BTC at $5,500 on Bitfinex vs $5,190 on Coinbase)
• The case would eventually result in an $18.5 million settlement in February 2021

The Allegations Unpacked

According to the New York Attorney General’s office, the investigation revealed that Bitfinex had entrusted approximately $850 million to a third-party payment processor known as Crypto Capital Corp. When those funds became inaccessible — allegedly seized by government authorities in Portugal, Poland, and the United States — Bitfinex faced a liquidity crisis. Rather than disclosing the loss to customers, the exchange reportedly turned to its sister company, Tether Limited, tapping into the reserves that were supposed to back the USDT stablecoin on a one-to-one basis with US dollars.

This arrangement was particularly alarming because Tether’s USDT was the most widely used stablecoin in the cryptocurrency ecosystem at the time, with billions of dollars in daily trading volume across virtually every major exchange. If Tether’s reserves were compromised, the implications could extend far beyond Bitfinex itself, potentially affecting liquidity and pricing across the entire cryptocurrency market.

Market Reaction and the Bitfinex Premium

The immediate market reaction to the April 25 court order was sharp but brief. Bitcoin, which had been trading around $5,400, plunged to approximately $4,971 within hours as panic selling swept through exchanges. However, the sell-off was contained remarkably quickly, and by the end of the trading week, BTC had not only recovered but appeared to be stabilizing above the psychologically important $5,000 level.

What emerged in the aftermath was far more unusual than the initial price dip. By Sunday, April 28, Bitcoin was trading at approximately $5,190 on Coinbase and other major exchanges — but on Bitfinex itself, the price had surged to roughly $5,500, a premium of more than $300 or approximately 6%. This divergence was unprecedented in its magnitude and directly attributable to the liquidity crisis unfolding at the exchange.

The premium existed because Bitfinex users, concerned about the exchange’s ability to process fiat withdrawals, were buying Bitcoin as a mechanism to move their funds off the platform. With fiat withdrawal channels effectively frozen or severely limited, purchasing Bitcoin and transferring it to another exchange became the most viable exit strategy. This concentrated buying pressure on Bitfinex pushed the BTC price significantly above market rates found elsewhere.

The Tether Question

Perhaps the most consequential aspect of the NYAG investigation was what it revealed about Tether’s backing. For years, the cryptocurrency community had debated whether USDT was truly backed by US dollar reserves on a one-to-one basis. The court filing suggested that the answer was, at best, complicated. If Bitfinex had indeed drawn on Tether’s reserves to cover its own losses, then USDT holders were effectively subsidizing the exchange’s operational failures without their knowledge or consent.

Tether Limited had long resisted independent audits of its reserves, offering periodic attestations from law firms instead. The NYAG investigation lent credibility to skeptics who had argued that these attestations were insufficient and that full transparency was necessary to protect the broader cryptocurrency ecosystem. The case also raised fundamental questions about the commingling of funds between affiliated entities in the crypto industry.

Industry Context

The Bitfinex-Tether controversy erupted during a period of renewed optimism in the cryptocurrency market. Bitcoin had been steadily climbing throughout April 2019, recently forming a bullish “golden cross” technical pattern and attracting attention from mainstream financial institutions like E*Trade and TD Ameritrade, both of which were exploring cryptocurrency trading offerings. The timing of the scandal threatened to undermine this narrative of growing legitimacy and institutional adoption.

Adding to the week’s turbulence, Binance had announced on April 22 that it would delist Bitcoin SV, citing failure to meet its listing standards. The combination of the BSV delisting and the Bitfinex-Tether investigation created an unusually eventful week in crypto, testing the market’s resilience at a time when many participants were hoping for a sustained recovery.

The Price Data

According to CoinMarketCap’s historical snapshot for April 28, 2019, Bitcoin was priced at $5,285.14 with a market capitalization of approximately $93.4 billion. Ethereum traded at $157.30 with a market cap of $16.7 billion. The total cryptocurrency market was valued at approximately $172 billion. These figures represented a significant recovery from the depths of the bear market but remained far below the peaks reached in late 2017 and early 2018.

Why This Matters

The NYAG’s case against Bitfinex and Tether was one of the most consequential regulatory actions in cryptocurrency history up to that point. It exposed the fragility of the stablecoin ecosystem at a time when USDT was the backbone of crypto trading liquidity worldwide. The $850 million question — whether Tether was fully backed — would continue to haunt the industry for years. The case ultimately concluded with an $18.5 million settlement in February 2021, with iFinex admitting no wrongdoing but agreeing to cease trading activity with New York residents and submit to periodic reporting of Tether’s reserves. More importantly, it forced the entire industry to confront uncomfortable questions about transparency, commingled funds, and the trust assumptions underlying digital asset infrastructure.

Disclaimer: This article was written for BitcoinsNews.com and reflects the news and market conditions as reported on April 28, 2019. Cryptocurrency investments carry significant risk. Past performance is not indicative of future results. Always conduct your own research before making investment decisions.