Wirecard — €1.9 Billion

Wirecard's €1.9 billion fraud dwarfs #5 MMM in financial scale, and it stands as the largest postwar corporate crime in Germany. The company fabricated cash balances across nonexistent Asian bank accounts, fooling EY auditors for years. A 2019 whistleblower revealed that 80% of revenue was fake, yet Wirecard's stock peaked at €190 per share. The operatic scale surpasses the average fintech scandal: €500 million in loans were booked to nonexistent partners. EY's failure to spot these gaps cost the firm €750 million in fines, and the collapse wiped out 3,000 jobs.