In futures trading, some mistakes will inevitably occur in the transaction, and banks must deal with them quickly and properly at this time. If the error cannot be recovered, the only feasible way is to transfer the error to an account named "Error Account" in the computer and report it to the bank headquarters. At first, nick leeson recorded the mistakes in the "wrong account" of "88888" in order to cover up the mistakes of his traders. Later, due to more and more loopholes to be filled, he decided to take risks and engage in a large number of illegal transactions, gradually becoming a gambler of financial derivatives. ? Alison, out of control, bought a lot of Nikkei futures. He believes that Japan's economy has begun to get out of recession and the stock market is bound to soar. However, God played a trick on people, and the strong earthquake of 1995 hurt Japan and destroyed the stock market. The Nikkei index fell more than 7% in a week. In desperation, Leeson absconded with his wife and was finally arrested in Frankfurt, Germany. He was sentenced to six and a half years in prison for fraud. 1In July 1999, Nick Leeson was released on parole for cancer.