When cryptocurrency exchange FTX abruptly collapsed in November 2022, bankruptcy examiners and federal prosecutors discovered that co-founder Gary Wang had inserted a secret line of code into the matching engine at Sam Bankman-Fried's direction: an 'allow_negative' parameter for sister trading firm Alameda Research. This custom backdoor exempted Alameda from automated liquidations and gave it a secret $65 billion line of credit directly from customer deposit pools. Alameda used the siphoned billions for speculative venture bets, luxury real estate, and political donations, resulting in an 8-count fraud conviction and a 25-year prison sentence for Bankman-Fried.
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Archive Record · 2020s
The Custom Code Behind FTX: How an 'Allow_Negative' Flag Siphoned $8 Billion in Customer Funds
FTX & Alameda Research / 2020s
When cryptocurrency exchange FTX abruptly collapsed in November 2022, bankruptcy examiners and federal prosecutors discovered that co-founder Gary Wang had inserted a secret line of code into the matching engine at Sam Bankman-Fried's direction: an 'allow_negative' parameter for sister trading firm Alameda Research. This custom backdoor exempted Alameda from automated liquidations and gave it a secret $65 billion line of credit directly from customer deposit pools. Alameda used the siphoned billions for speculative venture bets, luxury real estate, and political donations, resulting in an 8-count fraud conviction and a 25-year prison sentence for Bankman-Fried.
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