Top 10 Worst Financial Scams in History

Once America's seventh-largest company, Enron used systematic accounting fraud and special purpose entities to hide billions in debt, wiping out $74 billion in shareholder value when it collapsed in 2001.

Germany's fintech darling fabricated €1.9 billion in cash balances that simply did not exist, exposing catastrophic failures in auditing by EY and regulatory oversight by BaFin.

The crypto exchange secretly funneled billions in customer deposits to sister hedge fund Alameda Research, resulting in an $8 billion shortfall and criminal fraud convictions.

The namesake of all Ponzi schemes, Charles Ponzi promised 50% returns in 45 days through international postal reply coupons, defrauding investors of $20 million in 1920 dollars.

The telecom giant inflated assets by $11 billion through fraudulent accounting entries, leading to the largest bankruptcy in U.S. history at the time and CEO Bernie Ebbers' 25-year prison sentence.

Self-proclaimed "Cryptoqueen" Ruja Ignatova raised $4 billion selling a cryptocurrency that had no real blockchain, then vanished in 2017 and remains on the FBI's most wanted list.

Stanford Financial Group sold $7 billion in fraudulent certificates of deposit from its Antigua-based bank, promising impossibly high returns while operating a massive Ponzi scheme.

Elizabeth Holmes raised $700 million by claiming Theranos could run hundreds of blood tests from a single finger prick, a technology that never actually worked as advertised.

The 1720 speculative mania around the South Sea Company is considered the first major stock market crash, ruining thousands of investors including Sir Isaac Newton who lost £20,000.

Once America's seventh-largest company, Enron used systematic accounting fraud and special purpose entities to hide billions in debt, wiping out $74 billion in shareholder value when it collapsed in 2001.

Germany's fintech darling fabricated €1.9 billion in cash balances that simply did not exist, exposing catastrophic failures in auditing by EY and regulatory oversight by BaFin.

The crypto exchange secretly funneled billions in customer deposits to sister hedge fund Alameda Research, resulting in an $8 billion shortfall and criminal fraud convictions.

The namesake of all Ponzi schemes, Charles Ponzi promised 50% returns in 45 days through international postal reply coupons, defrauding investors of $20 million in 1920 dollars.

The telecom giant inflated assets by $11 billion through fraudulent accounting entries, leading to the largest bankruptcy in U.S. history at the time and CEO Bernie Ebbers' 25-year prison sentence.

Self-proclaimed "Cryptoqueen" Ruja Ignatova raised $4 billion selling a cryptocurrency that had no real blockchain, then vanished in 2017 and remains on the FBI's most wanted list.

Stanford Financial Group sold $7 billion in fraudulent certificates of deposit from its Antigua-based bank, promising impossibly high returns while operating a massive Ponzi scheme.

Elizabeth Holmes raised $700 million by claiming Theranos could run hundreds of blood tests from a single finger prick, a technology that never actually worked as advertised.

The 1720 speculative mania around the South Sea Company is considered the first major stock market crash, ruining thousands of investors including Sir Isaac Newton who lost £20,000.