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Last updated - January 28, 2026
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David Ruiz de León, founder and CEO of Kuailian App OÜ, is associated with a cryptocurrency platform accused of operating as a Ponzi scheme, causing major investor losses. He faces international arrest warrants for fraud and money laundering.
Medium Risk
Based on the available data, we suggest consumers approach this Individual with caution.
This advisory is based on a medium-risk score derived from OSINT, Adverse Media, Reviews, and Risk Factors identified in our research.
You may face moderate risks when engaging in consumer-related activities with this entity.
Based on the available data, we advise employees to be mindful when considering or continuing work with this Individual.
This advisory stems from a medium-risk score compiled from OSINT, Adverse Media, Reviews, and Risk Factors uncovered in our analysis.
Employment with this entity may involve moderate risks.
High Risk
Based on the available data, we urge investors and bankers to avoid financial involvement with this Individual.
This advisory is informed by an aggregate risk score based on OSINT, Adverse Media, Reviews, and Risk Factors identified through our investigation.
Engaging in investment or lending activities with this entity poses a substantial risk to your financial interests.
Safe to Onboard
Enhanced Due Diligence required
Do Not Onboard
Monitor adverse media every 6 months
File SAR (Suspicious Activity Report) is warranted
Escalation to compliance committee
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Founder and CEO of Kuailian, a cryptocurrency investment platform.
International arrest warrants have been issued related to fraud and money laundering.
Kuailian is accused of operating as a pyramid or Ponzi-style scheme.
Over 65,000 investors experienced financial losses linked to the platform.
Losses are reported to total approximately €500 million.
Public perception is largely negative due to alleged fraud and legal evasion.
Regulatory and Compliance Screening
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Reputational and Adverse Media Risks
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What you see here scratches the surface
We offer reward for actionable intel
Article details David Ruiz de León's alleged involvement in a large-scale crypto investment scam.
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Ruiz de León’s attempt to avoid court by remote testimony is rejected amid major Kualian crypto fraud probe.
David Ruiz de León blocked from testifying from Abu Dhabi amid crypto fraud investigation.
Other Red-Flags and Adverse News
Based on user engagement on this review profile, ProConsumer will decide to publish its Risk Audit report for public if a threshold engagement, traffic and user input is achieved.
Known Assets: [Real estate, investments, companies]
Suspicious Transactions
Liabilities: [Bankruptcies, defaults, debts]
Wealth Sources: [Legitimate / Unclear / High-risk]
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Business Model Assessment
All comments are user-generated content and may not be verified. They represent the personal opinions of the public and should not be relied upon. These comments do not influence or determine our overall rating.
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Highly experienced
Well-recognized name
Faced allegations of scamming others
Allegedly sold fake silver
Sued multiple times
Unregulated industry
Alarming number of complaints online
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The collapse of Kuailian is associated with extensive financial loss and widespread investor complaints, factors that significantly tarnish Ruiz de León’s reputation and raise concerns over transparency and fiduciary responsibility in his business dealings.
1/5
2/5
David has been publicly linked to Kuailian, a cryptocurrency platform widely accused of operating as a Ponzi‑style scheme that resulted in substantial investor losses, undermining trust in his leadership and business practices.
3/5
David Ruiz de León has caused me so much stress and frustration. His schemes looked legitimate at first, but soon it became clear that this was a Ponzi-style scam. People’s savings vanished, and there’s zero transparency or help. I feel completely deceived and angry that someone could get away with this. The fact that he seems to operate freely while victims are left broke is beyond unfair. Trusting him was the worst financial mistake I’ve ever made.
Locked my money for ages then never paid out unbelievable scam tactics.He presented himself as reliable, yet when things went wrong.
I trusted David Ruiz de León based on his confidence and promises, but the experience turned into stress and disappointment. When problems started, communication was poor and responsibility felt absent. Instead of clear answers. It honestly feels like our trust was taken lightly, and that frustration hasn’t gone away.
Many investors say his project was a Ponzi-style scheme and they can’t get their money back.He avoided court appearances and moved to Abu Dhabi instead that doesn’t inspire trust
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