A woman converted bitcoins into cash and property to help launder $6.3 billion in a fraud in China, British prosecutors told a London court on Monday.

Prosecutors in London accuse Wen Jian of helping to conceal the source of money that was stolen from 130,000 Chinese investors in a series of fraudulent schemes between 2014 and 2017.

Prosecutors do not believe the 42-year-old woman, who denies the charges against her, was involved in the initial get-rich-quick scam.

Prosecutor Gillian Jones told the court that the scam was organized by Zhang Yadi, a Chinese national whose real name is Qian Zhiming. He is called the beneficiary of the money laundering scheme in the indictment prepared by the prosecutor’s office.

How a massive fraud in China ended up in court in the UK

In 2017, Zhang fled to the UK under a false name after Chinese authorities began investigating the fraud scheme.

Jones also said that three people believed to be involved in the scheme have been arrested in China, but Zhang remains at large and the investors have not received a single dollar of the stolen money.

Jurors were told Zhang used Wen Jian as a “front” to help hide the source of the stolen money used to buy bitcoins to take the ill-gotten gains out of China

When Zhang landed in London in 2017, she needed to convert bitcoins into “property, jewelry and other valuable assets,” prosecutors said in court.

Wen Jian did not deny that he worked with digital currencies.

Prosecutor Gillian Jones told jurors they must determine whether Wen knew or suspected that the bitcoins he bought were the proceeds of crime. The trial is expected to conclude in March.

Bitcoin is back in the public eye after the Binance and FTX scandals

Ven’s trial comes less than 3 months after the US government imposed a total of more than $4 billion in fines on Binance, the world’s largest cryptocurrency trading platform, due to multiple violations discovered during fund transfers.

The Treasury Department in Washington states that Binance failed to report more than 100,000 suspicious transactions involving terrorist groups, fraud, child sexual abuse and ransomware activities.

Changpeng “CZ” Zhao, the co-founder of Binance and one of the most prominent figures in the crypto world, has stepped down as CEO of the company behind the cryptocurrency trading platform as part of a settlement with US authorities.

The huge scandal involving Binance erupted a year after the collapse of FTX, the second largest cryptocurrency platform in the world, following a massive fraud orchestrated by its founder, Sam Bankman-Fried.