South Korea Cracks Down as Wall Street Pours Billions Into Bitcoin

  • South Korea dismantled a $100M crypto-linked money laundering network amid stricter FX enforcement.
  • U.S. spot bitcoin ETFs saw their strongest weekly inflows since October, led by BlackRock.
  • The global crypto market is balancing tougher regulation with rising institutional adoption.

South Korean authorities have uncovered a large-scale crypto-linked money laundering operation just as institutional demand for digital assets surges in the United States. Together, the developments highlight a global crypto market pulled in two directions: tightening regulation on one side and growing mainstream adoption on the other.

Inside South Korea’s $100M Crypto Laundering Case

South Korea’s Korea Customs Service (KCS) said it has dismantled an international network accused of laundering nearly 149 billion won (about $101.7 million) through cryptocurrency and domestic banks. Three suspects have been referred to prosecutors for alleged violations of the Foreign Exchange Transactions Act.

Investigators say the operation ran for almost four years, masking illicit transfers as everyday expenses such as tuition payments or cosmetic procedures. The group allegedly bought crypto assets across multiple countries, moved them into South Korean wallets, converted them into local currency, and then scattered the funds through numerous bank accounts to avoid detection.

The case comes amid heightened scrutiny of cross-border capital flows. Earlier this month, the KCS announced year-round inspections targeting underground money exchange activity, warning that illegal flows could threaten currency stability. The urgency is underscored by a widening gap between trade proceeds handled by banks and goods reported to customs — a discrepancy that reached roughly $290 billion in 2025, the largest in five years.

A Booming Domestic Crypto Market Under Pressure

The crackdown places South Korea’s fast-growing crypto market firmly in the regulatory spotlight. As of mid-2025, the country’s crypto market capitalization stood at about 95 trillion won ($64.6 billion), with daily trading volumes averaging more than $4 billion.

Authorities say enforcement is necessary as illicit activity becomes more sophisticated. In one industry-focused inspection last year, regulators found that nearly all surveyed firms were involved in illegal foreign exchange transactions, totaling trillions of won. For policymakers, crypto’s scale now makes it impossible to ignore.

U.S. Bitcoin ETFs See a Wave of Institutional Inflows

While South Korea tightens controls, U.S. markets are seeing renewed confidence in crypto — particularly Bitcoin. Spot bitcoin exchange-traded funds attracted $1.42 billion in net inflows last week, their strongest showing since early October. BlackRock’s IBIT alone accounted for more than $1 billion of that total.

The inflows coincided with Bitcoin briefly pushing toward $97,000 before pulling back amid broader macro uncertainty. Analysts say the ETF demand reflects long-term institutional conviction, even as short-term price swings remain sharp.

Ethereum ETFs also posted their strongest inflows in months, signaling broader interest across major digital assets.

Despite strong ETF demand, the market remains fragile in the short term. Recent price drops triggered hundreds of millions of dollars in liquidations, largely from over-leveraged long positions. Analysts warn that thin liquidity and heavy derivatives trading continue to amplify sudden moves.

Still, many see the contrast between enforcement in Asia and accumulation in the U.S. as proof that crypto is entering a more mature — if uneven — phase.

Also Read: Google Tightens Crypto App Rules in South Korea—Could Binance Be Blocked?

South Korea’s latest enforcement action shows regulators are no longer playing catch-up with crypto-linked financial crime. At the same time, record ETF inflows in the U.S. suggest institutions are increasingly comfortable treating Bitcoin and Ethereum as long-term assets. Together, the trends point to a market being reshaped by stricter oversight and deeper institutional involvement — a combination likely to define crypto’s next chapter.

Disclaimer: The information in this article is for general purposes only and does not constitute financial advice. The author’s views are personal and may not reflect the views of CoinBrief.io. Before making any investment decisions, you should always conduct your own research. CoinBrief.io is not responsible for any financial losses.

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