In April 2025, I published an article titled The Whistleblower Who Exposed a $1.2 Billion Crypto Conspiracy in the UK, U.S. and UAE. It was probably one of the most difficult professional pieces I have ever written.
At the time, I tried to document what had happened from my perspective: how I became involved with Himalaya Exchange, what I encountered while working in Compliance, the concerns I raised internally, the information I subsequently provided to authorities, and what happened to me after doing so.
The article was personal because the experience was personal. But it was also necessarily incomplete.
I was writing about events that were still developing. Miles Guo had been convicted in the United States in July 2024, but he had not yet been sentenced. Other elements of the case remained unresolved. Some matters I could discuss openly, while others were subject to legal and confidentiality restrictions.
A great deal has happened since.
On 29 June 2026, U.S. District Judge Analisa Torres sentenced Miles Guo to 30 years in federal prison. He was also ordered to forfeit $889 million in proceeds from the schemes and his interests in specified property. The U.S. Department of Justice now describes the wider fraud as involving more than $1 billion obtained through a series of interconnected schemes from thousands of Guo's followers and other victims (U.S. Department of Justice, 2026a).
I therefore think there is value in returning to the story.
Not because a 30 year sentence provides an opportunity to say I told you so. Frankly, after everything that happened, that would be a fairly shallow conclusion.
The more interesting question for me, particularly as somebody who has continued working in senior Risk, Compliance and Financial Crime roles, is what this case can teach us about what happens before a billion dollar fraud becomes a prosecution.
Because I was there before the indictment.
How I ended up inside Himalaya Exchange
There is an important point about my involvement that I want to make clearer than I did in my original article.
I did not investigate Himalaya Exchange from the outside.
I worked for Hamilton Capital Holdings A private equity firm. Himalaya Exchange was acquired by Hamilton and I was placed into the business as Senior Manager of Transaction Monitoring and Regulatory Compliance, responsible for overseeing the 1st line AML, fraud and wider financial crime, sanctions, transaction monitoring and regulatory compliance.
Part of my work involved being placed into businesses acquired by Hamilton to examine their systems and controls, undertake regulatory and compliance assessments, identify weaknesses, recommend remediation and help implement appropriate control frameworks. My responsibilities also extended into escalated enhanced due diligence and transaction monitoring matters.
That is how I became involved with Himalaya Exchange.
I was not looking for a whistleblowing case. I was doing the job I had been employed to do.
As I documented in my original article, it was while working on the AML, transaction monitoring, fraud and regulatory functions surrounding Himalaya Exchange that my team and I began identifying matters that caused me significant concern.
Some related to transactions. Some related to the token ecosystem. Others concerned the regulatory position of the business and whether the controls surrounding the operation were remotely adequate for what was actually taking place.
At the time, I did not have the benefit of a U.S. indictment setting out an alleged billion dollar conspiracy.
I had internal information, transactions, systems, communications and the professional judgement expected of somebody responsible for financial crime controls.
That distinction matters.
What I knew then, and what we know now
One of the dangers when revisiting a case years later is hindsight.
Once we know that somebody has been convicted, it becomes remarkably easy to look backwards and convince ourselves that everything should have been obvious.
That is not how financial crime compliance works.
A suspicious transaction is not proof of money laundering. A control failure is not proof of fraud. A questionable commercial decision does not automatically establish criminal intent. Compliance professionals routinely work in precisely this uncomfortable space between something that looks wrong and something that can actually be proved.
Our responsibility is to identify that risk, investigate within the scope of our authority, document what we find, escalate appropriately and, where necessary, report externally.
That is what I attempted to do.
In June 2022, I reported concerns to the Financial Conduct Authority in the United Kingdom as management had outright begun threatening me for "doing my job" attempting to enforce SAR reporting and confidentiality from management who otherwise, were not meant to be involved besides the MLRO at the time. My original article records my subsequent disclosures and engagement with authorities, including information concerning internal communications, transaction records, audit trails and compliance assessments. I was later interviewed by U.S. and UAE authorities.
Nine months after my initial FCA disclosures, the public picture changed dramatically.
March 2023: Miles Guo and William Je are charged
On 15 March 2023, the U.S. Attorney's Office for the Southern District of New York announced the arrest of Ho Wan Kwok, also known as Miles Guo, and the unsealing of an indictment against Guo and Kin Ming Je, also known as William Je.
The DOJ alleged that Guo and Je were involved in an extensive scheme through which more than $1 billion had been solicited from victims using false statements and representations associated with several interconnected operations, including GTV Media, the Farm Loan Program, G|CLUBS and Himalaya Exchange (U.S. Department of Justice, 2023a).
For obvious reasons, the Himalaya Exchange section was the part I read most closely.
According to the DOJ, Guo, Je and others allegedly obtained more than approximately $262 million in victim funds through Himalaya Exchange.
The DOJ described Himalaya Exchange as a purported cryptocurrency ecosystem involving Himalaya Dollar, or HDO, and Himalaya Coin, or HCN. Prosecutors alleged that Guo promoted the value and prospects of these assets publicly, including representations concerning gold backing and assurances that investors would be compensated against losses (U.S. Department of Justice, 2023a).
The indictment also described an extraordinary increase in the purported value of HCN. According to prosecutors, HCN began trading at approximately $0.10 following the November 2021 initial offering. Within approximately two weeks, the Himalaya Exchange website purportedly valued each HCN at approximately $27, representing an increase of approximately 26,900 per cent and an implied total value of approximately $27 billion (U.S. Department of Justice, 2023a).
Reading those allegations after having worked within the control environment surrounding Himalaya Exchange was difficult.
But something else in the indictment was particularly relevant to the work of a transaction monitoring and financial crime function.
The money moved
The DOJ's case did not concern only marketing statements about cryptocurrencies.
It concerned money.
In September 2022, U.S. authorities served judicially authorized seizure warrants on several domestic banks. The DOJ subsequently stated that approximately $335 million was seized from accounts held in the names of Himalaya Exchange entities and other entities associated with Guo and Je. Further seizures followed.
According to the original indictment, the September and October 2022 seizures ultimately captured more than approximately $609 million in alleged fraud proceeds, including approximately $278 million from accounts held in the names of Himalaya Exchange entities, some of which purportedly held HDO cash reserves (U.S. Department of Justice, 2023b).
The DOJ subsequently reported total seizures exceeding approximately $634 million after additional seizures (U.S. Department of Justice, 2023a).
That distinction in timing explains why slightly different seizure figures appear across the U.S. materials. They refer to different stages of the seizure process rather than necessarily contradicting one another.
The indictment alleged something else that, from a regulatory and governance perspective, is particularly serious. Following the seizure of accounts purportedly holding Himalaya Exchange's HDO cash reserves, prosecutors alleged that the Himalaya Exchange website continued representing HDO as being backed by a reserve consisting of U.S. dollars and cash equivalent assets (U.S. Department of Justice, 2023b).
That is precisely the type of issue that demonstrates why financial crime, prudential, product, legal and regulatory compliance cannot operate as isolated functions.
What a business tells customers about an asset matters.
What actually sits behind that asset matters.
Where the money is held matters.
Who can move it matters.
And what happens when the underlying reserves are frozen or seized matters enormously.
William Je and the $46 million allegation
William Je deserves particular attention because his name has been part of this story from the beginning, including my original article.
But his legal position must be distinguished carefully from Guo's.
Je has been charged, not convicted.
The DOJ charged Guo and Je together with numerous offences. These included conspiracy, wire fraud connected with GTV, the Farm Loan Program, G|CLUBS and Himalaya Exchange, securities fraud, international promotional and concealment money laundering, and unlawful monetary transactions. Je was additionally charged with obstruction of justice (U.S. Department of Justice, 2023a).
One particular allegation concerning Je is worth examining because of its direct relationship to Himalaya Exchange and the movement of funds.
The DOJ alleged that within approximately two days of the first judicially authorised seizures of Himalaya Exchange related funds in September 2022, Je contacted management of a U.S. bank holding Himalaya Exchange accounts.
According to prosecutors, Je and a Himalaya Exchange executive initially represented that a wire transfer was required to facilitate the redemption of HDO into U.S. dollars for an unnamed “VIP”.
The DOJ alleges that Je subsequently disclosed that he himself was the VIP.
Prosecutors say Je provided documents reflecting two purported HCN sales totalling 46 million HDO, which he was attempting to convert into approximately $46 million, and emphasised to the bank that the transfer needed to occur that day (U.S. Department of Justice, 2023a).
Again, I want to be precise about the language.
Those are allegations made by the U.S. Department of Justice. Je has not been convicted of them.
Naming him is not the same thing as declaring him guilty.
In fact, one of the things this entire experience has reinforced for me is the importance of maintaining those distinctions even when we may have strong personal views based upon our own experiences.
The DOJ's case information page continues to identify the proceeding as United States v. Ho Wan Kwok, a/k/a “Miles Guo,” Kin Ming Je, a/k/a “William Je,” and Yanping Wang, a/k/a “Yvette” (U.S. Department of Justice, 2026b).
The unresolved nature of proceedings against one defendant should not be confused with what has subsequently been established against others.
The SEC was looking at the same ecosystem
The criminal case was not the only U.S. proceeding.
On the same day as the March 2023 arrests, the U.S. Securities and Exchange Commission announced civil charges against Guo and Je relating to an alleged $850 million fraud scheme.
The SEC alleged fraudulent securities offerings involving GTV common stock, the Farm Loan Program and G|CLUBS. It also brought claims concerning H Coin, although an important distinction is that the H Coin offering charge itself was brought against Guo rather than Je.
The SEC alleged that Guo had made material misrepresentations concerning H Coin, including claims that 20 per cent of its value was backed by gold and that he would personally compensate investors for losses (U.S. Securities and Exchange Commission, 2023).
This distinction between defendants and individual allegations may sound technical.
It isn't.
It is exactly how responsible financial crime analysis should work.
We should resist the temptation to place everyone connected with an organisation into one bucket simply because one person has been convicted. Accountability should follow evidence.
July 2024: the position changes again
On 16 July 2024, after a seven week federal trial, a unanimous jury found Miles Guo guilty of racketeering conspiracy and various securities fraud, wire fraud and money laundering charges (U.S. Department of Justice, 2024).
At that point, the language surrounding Guo properly changed. These were no longer merely allegations contained within an indictment. A jury had heard the case and convicted him.
That distinction is especially important to me because my original concerns had been raised approximately two years earlier, at a time when none of us working within the organisation had the benefit of a federal prosecution laying out what investigators believed had happened.
The job of Compliance is not to wait for prosecutors to tell us something is wrong.
But neither is it to pretend we possess prosecutorial certainty before the evidence has been tested.
It is to recognise risk early enough for somebody with the appropriate authority to do something about it.
Yvette Wang and the wider conspiracy
Another major development followed.
Yanping “Yvette” Wang pleaded guilty in May 2024 to conspiracy to commit wire fraud and conspiracy to commit money laundering. In January 2025, Judge Torres sentenced her to 10 years in prison, followed by three years of supervised release. Wang also agreed to forfeiture of $1.4 billion (U.S. Department of Justice, 2025; U.S. Department of Justice, 2026b).
The DOJ's sentencing account again specifically addressed Himalaya Exchange.
It stated that Guo's co conspirators introduced Himalaya Coin and Himalaya Dollar through what the Department described as a fraudulent cryptocurrency exchange and that the purported cryptocurrencies were designed to collect additional money from victims.
The DOJ also stated that the September 2022 seizures involved approximately $335 million from accounts held in the names of Himalaya Exchange entities and other entities associated with the conspirators (U.S. Department of Justice, 2025).
These NAMED accounts were exactly the ones I had reported on based on my team and my owns efforts to identify suspected financial crime.
The public record was becoming progressively clearer.
Then came June 2026.
Thirty years
On 29 June 2026, Judge Analisa Torres sentenced Miles Guo to 30 years in federal prison.
The following day, the Southern District of New York published its sentencing announcement.
The DOJ said Guo had led an expansive and complex fraud scheme involving more than $1 billion solicited through false statements and misrepresentations to thousands of followers.
The court ordered Guo to forfeit $889 million in proceeds from the schemes, as well as interests in specified property (U.S. Department of Justice, 2026a).
But one paragraph of the sentencing announcement stood out to me more than the sentence itself.
The DOJ described Guo's 2021 launch of Himalaya Exchange as a purported cryptocurrency ecosystem through which people could trade H Coin and H Dollar. It said those assets had been represented as blockchain native cryptocurrencies but were, in reality, little more than figures maintained on an internal company spreadsheet (U.S. Department of Justice, 2026a).
I had to sit with that for a moment.
Not because the statement suddenly told me that something had been wrong. I had spent years dealing with the consequences of raising concerns.
What struck me was the distance between where the matter had started for me and where it had ultimately ended.
In 2022, I was a Compliance professional looking at transactions, systems, controls and regulatory issues inside a business and asking uncomfortable questions.
In 2026, the U.S. Department of Justice was publicly describing part of that same ecosystem following a federal conviction and a 30 year sentence.
That is quite a journey.
What happened to Compliance?
This is where I think the story becomes relevant beyond Himalaya Exchange, Guo, Je or me.
It is easy to study financial crime retrospectively.
Once the indictment has been published, we can read it.
Once investigators have reconstructed the transactions, we can follow them.
Once witnesses have testified, we can understand the relationships.
Once the jury returns a verdict, we know what was proved to the criminal standard required in that proceeding.
The much harder question is what an organisation does before any of that exists.
What happens when somebody in Transaction Monitoring notices something unusual?
What happens when an AML professional cannot reconcile the stated purpose of activity with what is actually occurring?
What happens when Compliance challenges a product, customer, transaction, representation or senior decision?
What happens when management disagrees?
And perhaps most importantly, what happens when the person raising the concern refuses to make it disappear even when those in management threaten them?
My original article described what happened to me after I raised concerns internally. I documented my account of the escalation process, the requests I made for better systems, resources and controls, the external disclosures that followed and what I considered retaliatory treatment afterwards.
The subsequent U.S. proceedings are significant enough.
The more useful professional question is whether the governance environment surrounding a financial services business is capable of dealing with a Compliance function that reaches a conclusion management does not like.
Compliance should not exist to make management comfortable
I have spent a lot of time thinking about this since 2022.
The conclusion I have reached is actually quite simple.
An effective Compliance function should make a good business easier to run and a bad decision harder to execute.
That does not mean Compliance should be commercially obstructive.
I dislike the idea that a strong Compliance Officer is simply the person in the room who says no most often. That is lazy Compliance.
Our job is normally to understand the commercial objective, identify the regulatory and financial crime risks and find a workable route that allows the business to achieve its objective within the rules and its risk appetite.
But occasionally there is no clever workaround.
Sometimes the transaction needs to stop.
Sometimes the customer should not be onboarded.
Sometimes the product should not launch.
Sometimes money should not move.
Sometimes the Board needs to hear something it does not want to hear.
And sometimes the correct answer is simply no.
That is precisely when independence becomes more than a sentence in a governance policy.
If a Compliance Officer is independent only while agreeing with management, the function was never independent.
Whistleblowers are not always right
There is another point I want to make because whistleblowing discussions can become strangely absolutist.
A whistleblower is not automatically correct because they have made a protected disclosure.
Compliance professionals are not automatically correct because they work in Compliance.
Transaction monitoring systems generate false positives. Investigators can reach the wrong conclusion. Employees can misunderstand events. Personal disputes can contaminate professional judgement. Even experienced people make mistakes.
I would never advocate a governance model in which an allegation automatically becomes accepted fact merely because somebody labels themselves a whistleblower.
But that is not what whistleblower protection is supposed to achieve.
A good whistleblowing framework should protect the process of raising the concern while independently establishing whether the concern is supported by evidence.
That means the organisation does not have to believe the whistleblower.
It has to investigate what they are saying.
There is a profound difference between those two propositions.
When an organisation begins investigating the character, loyalty, performance or motives of the person raising the concern more aggressively than it investigates the underlying evidence, something has usually gone wrong with the governance process.
The regulatory question remains uncomfortable
My original article was critical of the response I experienced from the UK regulatory system.
I reported matters to the FCA beginning in June 2022 and subsequently engaged with authorities elsewhere. The United States ultimately brought criminal and civil proceedings. Guo was convicted. Wang pleaded guilty. Guo has now received a 30 year sentence.
That chronology inevitably raises questions.
But I also think those questions need to be framed carefully.
Regulators operate under different statutory powers, evidential thresholds, jurisdictional limitations and confidentiality requirements. The absence of a public enforcement announcement does not necessarily prove that nothing was considered or investigated.
Equally, that cannot become an automatic answer whenever serious concerns appear to have crossed multiple jurisdictions.
The proper governance question is therefore not simply:
“Why didn't the FCA prosecute?”
That is too simplistic.
The better questions are: what information was available to each relevant authority at each point in time? What jurisdiction did each authority possess? What action was legally available? What information could be shared with other authorities? Were risks to consumers or markets capable of being mitigated earlier? And what can regulators and regulated firms learn from the chronology now that much more of the underlying conduct has entered the public record?
Those are questions worth examining without pretending that I possess every answer.
The human cost gets lost in the numbers
There is another reason I do not view Guo's sentence as some kind of personal victory.
The numbers are enormous.
More than $1 billion.
Approximately $262 million allegedly obtained through Himalaya Exchange.
Hundreds of millions seized.
$889 million in forfeiture following Guo's conviction.
$1.4 billion in forfeiture associated with Wang's guilty plea and sentence.
Thirty years.
Ten years.
Those figures make good headlines.
But fraud is not ultimately experienced as a headline.
It is experienced by people.
Victims lose savings. Employees find themselves working inside organisations they may not fully understand. Compliance professionals can find their careers and livelihoods caught between professional obligations and commercial pressure. Families live with the consequences. Investigators spend years reconstructing activity that, ideally, should never have been allowed to progress that far.
I know the personal cost of my part of this story.
I also know that my experience is considerably less important than the losses suffered by the people whose money ultimately sat behind the figures appearing in the prosecution.
That is why I struggle with the idea of celebrating the sentence.
Accountability matters.
But prevention would have been better.
Prevention is the point
Financial crime professionals sometimes measure success through SAR volumes, alerts closed, cases investigated, customers exited or regulatory findings remediated. Which are all important.
But the ultimate objective should be much less glamorous.
Nothing happens.
The fraudulent transaction does not leave.
The criminal customer does not get onboarded.
The misleading product does not launch.
The sanctions exposure does not materialise.
The consumer does not lose their money.
The regulator never needs to investigate.
The prosecutor never needs to prosecute.
That is successful Compliance.
And unfortunately, because the disaster never happens, successful prevention is often invisible.
Perhaps that is why organisations sometimes underestimate the people whose job is to stop things from happening.
Four years later
When I first started raising concerns in 2022, I could not possibly have known that I would still be writing about them four years later.
I did not know that U.S. authorities would bring charges in March 2023.
I did not know that Miles Guo would ultimately face a seven week federal trial.
I did not know that a unanimous jury would convict him in July 2024.
I did not know that Yvette Wang would plead guilty and receive a ten year sentence.
And I certainly did not know that, in June 2026, Judge Torres would sentence Guo to thirty years in federal prison.
I knew only what was in front of me.
I knew what my professional responsibilities were.
And I knew that I could not simply ignore what I was seeing.
That is ultimately why I am revisiting my original article now.
Not because every concern I ever raised has somehow been vindicated by a single criminal case. That would be an intellectually dishonest way to describe something this complicated.
Rather, the subsequent public record demonstrates why organisations need people who are prepared to ask difficult questions before certainty exists.
Risk management is about uncertainty.
Compliance frequently operates without complete information.
Financial crime prevention requires professionals to identify patterns before prosecutors have reconstructed the entire picture.
And whistleblowing exists precisely because there will occasionally be circumstances in which the normal governance structure fails to resolve what somebody reasonably believes needs to be raised.
There is one question I would therefore leave with Boards, CEOs, Compliance Officers, MLROs and regulators.
When somebody within your control environment tells you something you genuinely do not want to hear, what happens next?
Do you examine the evidence?
Or do you examine the person?
Four years after I first raised concerns around Himalaya Exchange, that distinction feels considerably less theoretical.
Miles Guo is now serving a 30 year federal prison sentence.
William Je remains charged in the United States, and the allegations against him remain allegations unless and until determined by a court.
Thousands of victims were affected by the wider schemes described by U.S. prosecutors.
And somewhere much earlier in every major financial crime case there is usually a moment when somebody notices that something does not look right.
What happens in that moment matters.
References
U.S. Department of Justice (2023a) Ho Wan Kwok, a/k/a “Miles Guo,” arrested for orchestrating over $1 billion dollar fraud conspiracy. U.S. Attorney's Office, Southern District of New York, 15 March 2023. DOJ prosecution announcement
U.S. Department of Justice (2023b) United States v. Ho Wan Kwok and Kin Ming Je, Indictment, S1 23 Cr. 118. U.S. District Court for the Southern District of New York. DOJ indictment
U.S. Securities and Exchange Commission (2023) SEC Charges Exiled Chinese Businessman Miles Guo and His Financial Advisor William Je in $850 Million Fraud Scheme. 15 March 2023. SEC enforcement announcement
U.S. Department of Justice (2024) Statement of U.S. Attorney Damian Williams on the Conviction of Miles Guo. U.S. Attorney's Office, Southern District of New York, 16 July 2024. DOJ conviction announcement
U.S. Department of Justice (2025) Associate of Miles Guo, Yvette Wang, Sentenced to 10 Years in Prison for Her Role in an Over $1 Billion Dollar Fraud Conspiracy. U.S. Attorney's Office, Southern District of New York, 6 January 2025. DOJ Wang sentencing announcement
U.S. Department of Justice (2026a) Miles Guo Sentenced to 30 Years in Prison for Leading Billion-Dollar Fraud. U.S. Attorney's Office, Southern District of New York, 30 June 2026. DOJ Guo sentencing announcement
U.S. Department of Justice (2026b) United States v. Ho Wan Kwok, a/k/a “Miles Guo,” Kin Ming Je, a/k/a “William Je,” and Yanping Wang, a/k/a “Yvette”. Case information and updates. Accessed 29 September 2026. DOJ case record and updates
Ramella, T. (2025) Tyronne Ramella: The Whistleblower Who Exposed a $1.2 Billion Crypto Conspiracy in the UK, U.S. and UAE. LinkedIn, 16 April 2025. Your original article documents your first person account of the underlying compliance work, whistleblowing disclosures and subsequent proceedings. Read the original April 2025 article