BIS Chief Slams Bitcoin As Ponzi Scheme and Threat to Central Banks
The head of the Bank for International Settlements has blasted bitcoin as "a bubble," "a Ponzi scheme" and an "environmental disaster."

The head of the Bank for International Settlements (BIS) has blasted bitcoin as "a combination of a bubble, a Ponzi scheme" and, due to the energy consumption required for mining it, an "environmental disaster"
Calling for more regulation in a speech today, Agustin Carstens, general manager of the BIS, warned that cryptocurrencies could become "parasites" on the financial system and argued that they must be held to the same standards as other banking and payment services, Reuters states.
Forbes further cites Carstens as saying that cryptocurrencies should not be allowed to undermine trust in central banks. He argued that the consequences of debasing this trust have historically been detrimental, referencing the 19th century production of currencies by private banks as a cause of financial turmoil that subsequently brought about the creation of the Federal Reserve System.
"The tried, trusted and resilient modern way to provide confidence in public money is the independent central bank," Carstens stated, while lauding the protections banks afford consumers and investors.
He also claimed that cryptocurrencies are "not sustainable as money," adding that they fail to meet the "basic textbook definition" of a currency. The volatility of cryptocurrencies, the BIS chief went on, is tolerated mostly by those "who massively evade taxes or launder money."
Carstens' remarks put him in the company of a growing list of heads of state and influential finance figures condemning bitcoin and other cryptocurrencies, which have recently suffered substantial losses in value.
Billionaire George Soros made similar assertions last month, saying that the term "cryptocurrency" is a misnomer, because a lack of stable value precludes it from being a currency at all.
Agustin Carstens image via Sari Huella/Wikimedia Commons
More For You
Tom Lee says stop timing the bottom and start buying the dip

Thomas Lee, speaking on stage at Hong Kong Consensus 2026, said investors should be looking at opportunities as crypto is in the midst of a "mini winter."
What to know:
- Fundstrat's Thomas Lee urged investors to view the sell-off as a buying opportunity, arguing that gold has likely peaked for the year and that bitcoin and ether are poised to outperform
- Lee sees ether possibly needing a brief dip below $1,800 before a sustained recovery.
- Bitcoin fell back below $67,000 on Wednesday, extending a pullback from last week's rebound and marking a roughly 50 percent drawdown from its October record highs.











