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A Seoul court sentenced Delio CEO Jeong Sang-ho to 15 years in prison on August 13, 2026, after finding him guilty of defrauding customers of roughly 70 billion Korean won ($49.2 million) in cryptocurrency, five years short of the 20-year term prosecutors had sought.
The sentence is five years below the 20-year term prosecutors had requested earlier this year. Prosecutors had initially pursued a far larger case, accusing Jeong of defrauding approximately 2,800 customers of about 250 billion won ($175.6 million) between August 2021 and June 2023.
But the court did not accept the prosecution’s central indictment in full. Judge Jang Chan and the Seoul Southern District Court ruled that evidence obtained during a search and seizure involving Delio’s server operator had been illegally collected. That decision significantly reduced the scope of the case that could be proven against Jeong.
The ruling nonetheless leaves Jeong facing a lengthy prison term over the remaining allegations, underscoring the seriousness with which South Korean authorities are treating financial misconduct involving digital assets.
The most consequential part of the ruling was not simply the 15-year sentence but the court’s decision to acquit Jeong on the primary indictment covering approximately 250 billion won in alleged losses.
According to reports, the court concluded that evidence obtained from the company hosting Delio’s servers could not legally be used. The evidentiary ruling effectively weakened the prosecution’s broader case involving around 2,800 alleged victims. A separate set of charges remained intact, covering approximately 70 billion won and more than 1,000 customers.
Jeong was also found guilty of using false documentation in connection with Delio’s registration as a virtual asset service provider. Prosecutors alleged that the company overstated its cryptocurrency holdings in documentation submitted during the registration process.
The development illustrates a critical distinction in major Crypto fraud prosecutions: allegations can involve enormous sums, but prosecutors must still establish each element of the case using evidence that meets legal requirements.
The court described the conduct that was proven as particularly serious. It said the defendant had defrauded a large amount of money from numerous victims and emphasized both the methods used and the scale of the resulting damage.
“The defendant committed the crime of defrauding a large sum from numerous victims,” the court said, adding that the conduct was “extremely grave.”
The court also pointed to the lack of forgiveness from victims who suffered substantial financial losses.
The criminal proceedings stem from Delio’s spectacular collapse in 2023. The company operated a cryptocurrency deposit platform and marketed itself as a digital-asset banking service, offering customers returns on cryptocurrency deposits.
That model came under severe pressure in June 2023, when Delio abruptly suspended customer deposits and withdrawals. The move left users unable to access their assets and triggered regulatory and criminal scrutiny.
Delio was subsequently declared bankrupt in November 2024, adding another chapter to a crisis that had already left customers facing significant uncertainty over the recovery of their funds.
The collapse also unfolded against the backdrop of wider problems in South Korea’s crypto lending and investment sector. Delio had links to Haru Invest, another digital-asset platform that halted withdrawals around the same period. The problems surrounding the two businesses intensified scrutiny of how crypto platforms handled customer assets and counterparties.
For customers, the case became a stark example of the risks involved when cryptocurrency is deposited with centralized platforms rather than held directly by users.
The Delio case therefore extends beyond one company. It highlights the importance of transparency, asset custody, liquidity management and accurate disclosures in a market where customers can lose access to their holdings when a platform runs into financial trouble.
The verdict is likely to resonate across South Korea’s digital-asset industry, particularly as authorities continue strengthening oversight of virtual asset businesses.
The 15-year punishment makes the Delio ruling one of the more severe criminal sentences faced by a South Korean crypto executive. It also demonstrates that prosecutors are willing to pursue lengthy prison terms in cases where executives are accused of misleading customers or mishandling digital assets.
Prosecutors’ original request for a 20-year sentence reflected the scale of the allegations. They argued that Jeong’s conduct affected thousands of customers and involved hundreds of billions of won in cryptocurrency.
The final judgment, however, shows that even in a high-profile Crypto fraud case, prosecutors can see a substantial portion of an indictment collapse when evidence is ruled inadmissible.
The court also ordered Jeong to remain detained, citing concerns that he could flee, according to local reporting.
For South Korea’s crypto sector, the Delio verdict could become an important reference point for future enforcement. It sends two messages simultaneously: digital-asset executives can face severe criminal consequences for proven misconduct, but prosecutors must also satisfy strict evidentiary standards.
For investors, the broader lesson from the Crypto fraud case is equally significant. High yields and professional branding do not eliminate counterparty or custody risk. The collapse of Delio shows how quickly confidence can disappear when withdrawals are halted, while the court proceedings demonstrate how difficult it can be for victims to recover losses through the legal system.
Ultimately, the Crypto fraud ruling against Jeong Sang-ho closes one major chapter in the Delio saga, but questions surrounding customer recovery, accountability and the future regulation of crypto deposit services are likely to remain long after the 15-year sentence was handed down.
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