Why Did QuadrigaCX Fail?
$190 Million Locked Forever — Because the CEO Took the Keys to His Grave
📜 What Happened
QuadrigaCX was Canada's largest crypto exchange, and its 30-year-old CEO Gerald Cotten was the only custodian of the private keys to customer funds — $190 million worth. In December 2018, Cotten died suddenly in India of complications from Crohn's disease. The exchange collapsed: no one could access the cold wallets, and audits later suggested the exchange may have been trading customer funds without reserves all along. 115,000 customers lost their money — literally locked behind keys that died with one man. The crypto exchange that trusted everything to a single point of failure.
☠️ The Fatal Mistake
A single person holding the keys to everything — no backup, no succession, no transparency — the ultimate concentration of risk.
🧠 The Lesson (Free for You)
Never let anything critical depend on one person, one password, one device. The 'irreplaceable' setup is a disaster waiting for a bad day — backups and redundancy aren't bureaucracy, they're survival.
📕 The Antidote Book
Bogle — founder of Vanguard, inventor of the retail index fund — spends the book proving one arithmetic truth: all investors collectively EARN the market's return, so after costs, the average actively-managed rupee…
📖 OPEN THE FULL INTERACTIVE BREAKDOWN →Searchable, filterable, free to read — they paid billions; your lesson is free.