What did South Korea's Financial Services Commission (FSC) do in these two crypto cases?

The FSC referred suspects in two separate cryptocurrency market manipulation cases to prosecutors after its 12th regular meeting. Both cases involve individuals accused of artificially distorting crypto token prices to attract retail buyers and profit from manufactured market activity. This is part of South Korea's broader push to tighten oversight of its virtual asset markets.

How did the first crypto manipulation scheme in South Korea allegedly work?

A crypto whale allegedly spent tens of billions of Korean won — roughly US$6.4 million per 10 billion won — over two months to control nearly half of a token's circulating supply. The suspect reportedly pumped the price on overseas exchanges to simulate global demand, then sold holdings on a local South Korean exchange, leaving retail investors with significant losses.

Why is accumulating half a token's circulating supply so dangerous for retail investors?

When one entity controls close to 50% of a token's circulating supply, they can effectively dictate price by restricting available tokens (supply shock) and creating artificial demand signals. Retail investors see the price rising and buy in, unaware the move is manufactured. Once the large holder sells, price collapses and smaller investors are left holding losses.

How did the second South Korean crypto manipulation case differ from the first?

The second case used API-based trading to place repeated small buy and sell orders, creating a false impression of active market participation. The suspect simultaneously submitted high-priced limit buy orders to push the price up, then sold holdings in stages to realise profits while avoiding an immediate and obvious price crash.

What is a pump-and-dump scheme in crypto, and why did the FSC specifically warn about it?

A pump-and-dump is when someone artificially inflates a token's price — often by restricting supply or faking demand — then sells into the manufactured rally, causing a sharp collapse. The FSC specifically warned retail investors to avoid chasing tokens with sudden, unexplained price and volume surges, as these patterns are common indicators of manipulation rather than genuine demand.

Image for illustrative purposes only. Not a real photo.

South Korea sends two crypto cases to prosecutors

Written by Heidi Cuthbert Published Jul 1, 2026, 1:52 PM

South Korea's Financial Services Commission (FSC) has referred suspects in two separate cryptocurrency market manipulation cases to prosecutors following its 12th regular meeting.
The cases involve two individuals accused of using different methods to artificially distort crypto prices, attract retail buyers, and profit from manufactured market activity.
The referrals reflect South Korea's continued tightening of oversight over virtual asset markets, where heavy retail participation has made price manipulation a regulatory priority.

In the first case, a crypto whale allegedly used tens of billions of Korean won — equivalent to approximately US$6.4 million per 10 billion won — over roughly two months to manipulate the price of a token listed on both domestic and overseas exchanges.

The suspect allegedly accumulated nearly half of the token's circulating supply, artificially pushed the price higher on overseas exchanges to create the appearance of global demand, and then sold holdings on a local exchange.

Retail investors reportedly suffered significant losses once the suspect exited into the demand they had helped manufacture.

In the second case, another individual allegedly used API channels to repeatedly place small buy and sell orders, creating a false impression of active trading, while simultaneously submitting high-priced limit buy orders to push the price higher.

The suspect then allegedly sold holdings in stages to realise profits while avoiding an immediate price collapse.

"Investors should refrain from chasing virtual assets whose prices and trading volumes surge without any reasonable cause,"

the FSC said.

"In particular, the so-called 'pump-and-dump' schemes artificially reduce available supply to inflate prices, and the subsequent sell-off often leads to a sharp price collapse,"

the FSC added.

The FSC announced plans to improve its warning system for highly concentrated crypto trading and strengthen its investigative framework to detect unfair practices more quickly.

The cases highlight the risks posed by thinly traded tokens where a single large holder can restrict supply, influence price discovery, and exit before smaller investors understand the source of the move.