Bitcoin, Ethereum and every other major cryptocurrency collapsed on Tuesday, as fears of regulatory clampdown in South Korea triggered a mass exodus from the digital asset class. The collapse comes as mainstream media reports continue to push the idea of an imminent ban on cryptocurrency exchanges even as lawmakers cautioned no decision had been reached.

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Cryptocurrency Market in Free Fall

The cryptocurrency market declined rog $190 billion on Tuesday, marking one of the biggest single-day drops on record. At its lowest, the market was valued at $510 billion,  which was than $200 billion below its peak earlier this month.

The top 20 coins were each down in excess of 17%, according to data provider CoinMarketCap. Nearly $49 billion worth of cryptocurrency exchanged hands over the past 24 hours.

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Bitcoin plunged below $12,000, reaching its lowest level since early December. Ethereum, its biggest rival, fell back toward $1,000, while Ripple bottomed out at $1.23 after peaking above $3 just a few weeks ago.

South Korea Jolts Market

It was mainly regulatory issues that jolted cryptocurrencies on Tuesday, with South Korea mulling new legislation to stamp out excessive risk from the market.

South Korea’s finance minister Kim Dong-yeon reportedly told local radio that an all-out ban on cryptocurrency trading was a “live option, but that government officials still need to “seriously review it.” Seoul’s biggest issue with cryptocurrency trading is the level of speculation in the market and the role of anonymous accounts in spurring volatility. New regulations have already banned anonymous trading on domestic exchanges and barred foreigners from participating in the market.

Last week, some of South Korea’s busiest crypto exchanges were raided by police and tax agents over alleged tax evasion. The raids were confirmed by an employee at Coinone, who spoke to Reuters anonymously.

Seoul’s financial authorities had previously indicated they were investigating six banks that offer cryptocurrency accounts. In addition to speculative risks, authorities are also concerned about the link between cryptocurrency trading and organized crime.

South Korea is a major center for cryptocurrency and is home to some of the largest exchanges. Local traders have been the main catalysts behind some of the crypto market’s biggest gainers, including Ripple.

Some analysts believe that further regulatory crackdown will be ineffective given the borderless nature of cryptocurrencies. When China banned cryptocurrencies, traders there migrated their accounts offshore to Hong Kong or Korea. This suggests that a regulatory crackdown can only succeed with broad international cooperation, which does not exist at the time.

Chinese regulators know that their measures have done very little to limit virtual capital flight from the country. That’s why they are moving to block domestic access to offshore exchanges, according to a recent Bloomberg report.

Disclaimer: The author owns bitcoin, Ethereum and other cryptocurrencies. He holds investment positions in the coins, but does not engage in short-term or day-trading.

Featured image courtesy of Shutterstock.