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<p><strong>Do Kwon, the founder of Terraform Labs, is serving 15 years in a US prison.</strong> Judge Paul Engelmayer sentenced him in New York on December 11, 2025, after Kwon had pleaded guilty to fraud in August 2025. The case concerned the collapse of the stablecoin TerraUSD (UST) and the cryptocurrency LUNA in May 2022. The US Department of Justice puts the damage at around $40 billion, and investors around the world were hit, including in Germany.</p>
<p>This explainer puts the sentence in context: how the Terra system was supposed to work and why it failed, what Kwon admitted in court, which cases are still running and what the case means for investors today. The key point for you: under the EU's crypto regulation MiCA, a stablecoin like UST would no longer get a licence in the European Union. Where you can trade crypto with providers that hold such a licence is shown in our comparison of <a href="https://cryptoticker.io/en/comparison/best-regulated-exchange/" rel="noopener noreferrer nofollow">regulated crypto exchanges</a>.</p>
<h2 id="who-is-do-kwon-the-terraform-labs-founder-who-created-terrausd">Who is Do Kwon? The Terraform Labs founder who created TerraUSD</h2>
<p>Do Kwon, full name Kwon Do-hyeong, is a South Korean entrepreneur. In 2018 he founded Terraform Labs in Seoul together with Daniel Shin; the company later moved its base to Singapore. Terraform built the Terra blockchain, whose core product was a family of <a href="https://cryptoticker.io/en/charts/stablecoins/" rel="noopener noreferrer nofollow">stablecoins</a>. A stablecoin is a crypto token whose price is meant to be pegged to a currency such as the US dollar. The best known of them was TerraUSD, or UST for short.</p>
<p>Kwon was a well-known and combative figure in the industry. On social media he publicly called critics of his model poor, and his followers called themselves "Lunatics". In early 2022 LUNA was among the ten largest cryptocurrencies by market capitalisation, and UST was the third-largest stablecoin behind Tether and USDC.</p>
<h2 id="terrausd-and-luna-how-the-algorithmic-stablecoin-was-meant-to-work">TerraUSD and LUNA: how the algorithmic stablecoin was meant to work</h2>
<p>UST was fundamentally different from stablecoins such as USDC, which hold a dollar or a short-dated government bond in reserve for every token issued. UST was an <strong>algorithmic stablecoin</strong>. In other words, a swap mechanism built into the protocol was supposed to maintain the dollar peg, with no reserves at all.</p>
<p>The mechanism ran through its sister token LUNA. For one UST you could always get a dollar's worth of LUNA, and vice versa. If UST fell below one dollar, traders could buy it cheaply, swap it for a dollar's worth of LUNA and pocket the difference. In the process UST was destroyed and new LUNA was created. This arbitrage was supposed to pull the price back to the dollar automatically. How stablecoins with real backing work is explained in our guide to how stablecoins work.</p>
<p>The weakness of this design was that it only worked as long as LUNA itself had value. Once confidence in UST collapsed, more and more LUNA was minted, which pushed its price down and in turn weakened confidence in UST even further. Experts call this a death spiral.</p>
<p>Demand for UST was driven mainly by Anchor Protocol, a lending platform on Terra. Anchor promised interest of around 19.5 percent a year on UST deposits. A large share of all UST therefore sat there, and many investors treated the stablecoin as a kind of high-yield savings account.</p>
<figure><img src="https://cryptoticker-strapi-media.s3.eu-central-1.amazonaws.com/do_kwon_terra_urteil_gerichtsflur_8edf516f4f.webp" alt="Long courthouse corridor at night with a marble floor, a trolley full of files in the foreground under a single ceiling light" width="1920" height="1080">
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  The criminal case against Do Kwon in New York ended with a guilty plea and 15 years in prison.
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</figure>
<h2 id="the-terra-crash-of-may-2022-how-ust-lost-its-dollar-peg">The Terra crash of May 2022: how UST lost its dollar peg</h2>
<p>On May 7, 2022, large outflows from UST began, many of them from Anchor Protocol. The price slipped below one dollar. The Luna Foundation Guard, a foundation close to Terraform, had previously bought billions of dollars' worth of <a href="https://cryptoticker.io/en/prediction/bitcoin-price-prediction/" rel="noopener noreferrer nofollow">bitcoin</a> as an emergency reserve and now sold it to prop up UST. It was not enough. Within a few days UST fell to a few cents, and the swap mechanism created trillions of new LUNA. The LUNA price, still above $100 at the start of April, dropped to practically zero.</p>
<p>The collapse set off a chain reaction. Over the following weeks the crypto fund Three Arrows Capital and lending platforms such as Celsius and Voyager went bankrupt, and 2022 ended with the collapse of the FTX exchange. The Terra network continued under the name Terra Classic with the LUNC token, while Terraform launched a new blockchain with a new LUNA token. If you want to check a stablecoin's price history yourself, our guide on how to <a href="https://cryptoticker.io/en/stablecoin-depeg-explained/" rel="noopener noreferrer nofollow">spot a depeg</a> lists the warning signs.</p>
<h2 id="do-kwon-on-the-run-arrest-warrant-in-south-korea-and-arrest-in-montenegro">Do Kwon on the run: arrest warrant in South Korea and arrest in Montenegro</h2>
<p>In September 2022 a court in Seoul issued an arrest warrant for Kwon over violations of South Korea's capital markets law. By then Kwon was no longer in South Korea. In March 2023 he was arrested at the airport in Podgorica, Montenegro, while trying to leave the country on a forged passport. A Montenegrin court sentenced him to four months in prison for document forgery.</p>
<p>The dispute over his extradition then dragged on for almost two years, because both the United States and South Korea were seeking it. On December 31, 2024, Kwon was finally extradited to the US. In January 2025 he initially pleaded not guilty on all nine counts before the federal court in Manhattan.</p>
<h2 id="guilty-plea-and-sentence-15-years-in-prison-for-fraud-in-the-terra-case">Guilty plea and sentence: 15 years in prison for fraud in the Terra case</h2>
<p>On August 12, 2025, Kwon changed course and pleaded guilty to two counts: conspiracy to commit fraud and wire fraud. In court he admitted that in 2021 he had misled investors about how UST's dollar peg had been restored after an earlier price slump. It was not the algorithm that had rescued the price at the time but a trading firm that was buying UST on a large scale in the background. His words in court were: "I made false statements about how the peg was restored, and the role of another firm." It was precisely this supposed self-healing of the system that had given many investors a reason to trust UST.</p>
<p>As part of the agreement, Kwon is to forfeit around $19.3 million as well as other assets. Prosecutors undertook not to seek more than twelve years in prison. Kwon's lawyers asked for no more than five years.</p>
<p>On December 11, 2025, Judge Engelmayer went beyond both requests and imposed 15 years. According to media reports from the courtroom, he called the defence's proposal "utterly unthinkable". The months Kwon spent in custody in Montenegro will count towards the sentence. In its statement on the sentence, the <a href="https://www.justice.gov/usao-sdny/pr/crypto-enabled-fraudster-sentenced-orchestrating-40-billion-fraud" rel="noopener noreferrer nofollow">US Department of Justice</a> describes Kwon as the mastermind of a $40 billion fraud. We reported on his plea for a lenient sentence in November 2025.</p>
<h2 id="the-4-47-billion-sec-settlement-the-civil-case-against-terraform-labs">The $4.47 billion SEC settlement: the civil case against Terraform Labs</h2>
<p>Alongside the criminal case ran a lawsuit by the US Securities and Exchange Commission. In April 2024 a New York jury found Terraform Labs and Kwon liable for deceiving investors. In June 2024 both reached a settlement with the SEC for payments totalling around $4.47 billion, of which around $204 million was owed by Kwon personally. The details are in our report from June 2024 on Do Kwon paying $4.5 billion to the SEC.</p>
<p>Much of that sum exists only on paper. Terraform Labs had already filed for bankruptcy in the US in January 2024 and has been wound down since then. Recognised creditor claims are paid out of the bankruptcy estate first, with the SEC behind them. In March 2025 the wind-down set up an online portal for crypto losses for affected investors. According to filings in the case, the deadline for submitting claims expired at the end of April or in mid-May 2025, depending on the report.</p>
<figure><img src="https://cryptoticker-strapi-media.s3.eu-central-1.amazonaws.com/do_kwon_terra_urteil_waage_a69bb1b700.webp" alt="Brass balance scale on a dark wooden table, one pan heavily loaded with metal discs, the other empty and lifted high" width="1920" height="1080">
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  Around $40 billion in damage set against a $4.47 billion payment commitment, and even that will only be paid in part.
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</figure>
<h2 id="proceedings-in-south-korea-what-awaits-do-kwon-after-his-us-sentence">Proceedings in South Korea: what awaits Do Kwon after his US sentence</h2>
<p>The US sentence does not close the case. South Korean prosecutors are running their own investigation and are maintaining their charges. According to reports from Seoul, Kwon faces more than 30 years in prison there if convicted; media figures range between 30 and 40 years. US prosecutors have agreed not to oppose a transfer to South Korea once Kwon has served half of his sentence. Any such transfer must be decided by both governments.</p>
<h2 id="mica-and-algorithmic-stablecoins-why-ust-would-not-get-an-eu-licence-today">MiCA and algorithmic stablecoins: why UST would not get an EU licence today</h2>
<p>The Terra collapse came in the middle of negotiations on the European Markets in Crypto-Assets regulation, MiCA for short. Its rules for stablecoins have applied since the end of June 2024, and the full regulation since the end of 2024. MiCA distinguishes two types: e-money tokens, which are pegged to a single official currency, and asset-referenced tokens, which refer to a basket of assets. Both may only be issued by licensed issuers, and both require a reserve that covers the value of the tokens issued and is held separately.</p>
<p>A construct like UST, which tried to hold its price solely through an algorithm and a second, freely fluctuating token, does not meet these requirements. In practice this means: if a platform in the EU offers you a stablecoin with high interest, check who issues it, whether the issuer has a MiCA licence and what the reserve looks like. An overview of which stablecoins are authorised under MiCA and where you can trade them can be found in our stablecoin comparison.</p>
<h2 id="terra-losses-and-tax-what-investors-in-germany-should-know">Terra losses and tax: what investors in Germany should know</h2>
<p>Many investors in Germany lost a lot of money on UST and LUNA in 2022. For tax purposes, such losses are subject to the same rules as gains from private sales transactions under Section 23 of the German Income Tax Act. Losses from sales within one year of purchase can be offset against gains from other private sales transactions in the same year and, if those are not enough, carried forward to later years. The condition is that the loss was assessed in the tax return for the year in which it arose.</p>
<p>Anyone who did not sell their LUNA or UST back then and still holds LUNC or USTC today has, as a rule, passed the one-year period. A sale after more than one year is tax-free, and the loss can then no longer be used for tax purposes either. For an assessment of your individual case, tax advice is worthwhile; for documenting all purchases and sales, a portfolio tracker helps.</p>
<h2 id="do-kwon-and-terra-15-years-in-prison-but-no-money-back-for-investors">Do Kwon and Terra: 15 years in prison, but no money back for investors</h2>
<p>The sentence against Do Kwon closes the criminal case in the US, but it does not bring back the lost money. Above all, the case shows one thing: a stablecoin is only as stable as what backs it, and a high yield on a supposedly safe dollar token is a warning sign. Three steps help you keep the risk smaller today.</p>
<ol>
 <li><strong>Trade only with licensed providers:</strong> Check in our comparison of the <a href="https://cryptoticker.io/en/comparison/exchange-comparison/" rel="noopener noreferrer nofollow">best crypto exchanges</a> which platform holds a MiCA licence.</li>
 <li><strong>Document losses and gains:</strong> A tool from our comparison of <a href="https://cryptoticker.io/en/comparison/crypto-tax-software/" rel="noopener noreferrer nofollow">crypto tax tools</a> records every sale with its date and price.</li>
 <li><strong>Consider self-custody:</strong> If you would rather not leave your coins on a platform, our <a href="https://cryptoticker.io/en/comparison/hardware-wallets/" rel="noopener noreferrer nofollow">hardware wallet comparison</a> lists suitable devices.</li>
</ol>
<p><em>(As of November 10, 2026. This article is not investment advice. Prices and fee structures change; check the terms with the provider before you buy.)</em></p>

Do Kwon sentenced to 15 years: the Terra collapse verdict and the cases still open

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